final program - North American Spine Society

July 26-30, 2015 | The Fairmont Orchid | Big Island, Hawaii, USA

FINAL PROGRAM

A joint providership by the North American Spine Society and the Japanese Society for Spine Surgery and Related Research

Dear Spine Care Professionals: Aloha! On behalf of the North American Spine Society (NASS) and the Japanese Society for Spine Surgery and Related Research (JSSR), we are pleased to welcome you to Spine Across the Sea 2015 on the beautiful island of Hawaii. This meeting provides attendees an opportunity to share current information and concepts relating to spinal problems as well as exchange ideas with experts and peers from around the world. Welcome to one of the main island’s premier resort hotels, the Fairmont Orchid on the Kohala Coast. From Mauna Kea’s winter snow-capped mountaintop to the flowing lava of Kilauea Volcano to tropical rainforests and a teeming undersea world, the Big Island of Hawaii has much to offer the spirited traveler. Enjoy a sugar-white sandy lagoon and aquamarine waters, a children’s program, golf, tennis and six restaurants. This unique meeting is offered every three years and offers a wealth of benefits: scientific paper presentations, symposia and ePosters; a technical exhibition; plus breakfasts and networking breaks. The Wine and Cheese Opening Reception on Sunday, July 26 is a great start to the meeting and excellent opportunity to interact with colleagues. We hope you and your colleagues find the meeting experience rewarding, and again, welcome to Hawaii and Spine Across the Sea. Mahalo! Thomas E. Mroz, MD North American Spine Society Program Chair Wellington K. Hsu, MD North American Spine Society Program Co-chair Hiroaki Nakamura, MD, PhD Japanese Society for Spine Surgery and Related Research Program Chair

TABLE OF CONTENTS Acknowledgements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Meeting Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Dining. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Area Attractions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Meeting-at-a-Glance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Sunday, July 26/Monday, July 27. . . . . . . . . . . . . . . . . . . . . . . . . 12 Tuesday, July 28. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Wednesday, July 29. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Thursday, July 30. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Electronic Posters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Subject Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Author Index. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Technical Exhibition. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Disclosure Index. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Proceedings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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ACKNOWLEDGEMENTS Planning Committee Thomas E. Mroz, MD Overall Chair, NASS Joji Mochida, MD, PhD President and Overall Chair, JSSR

JSSR Organizing Committee Toshihiko Taguchi, MD, Vice-President, JSSR Hirotatsu Komori, Secretary, JSSR Shinichi Konno, MD Munehito Yoshida, MD, PhD

NASS Program Committee Saad B. Chaudhary, MD, MBA John G. DeVine, MD Edward J. Dohring, MD Wellington K. Hsu, MD Eric O. Klineberg, MD Ajit A. Krishnaney, MD Thomas E. Mroz, MD John H. Shin, MD Michael P. Steinmetz, MD Jeffrey C. Wang, MD Michael Y. Wang, MD

JSSR Program Committee Hiroaki Nakamura, MD, PhD Yukihiro Matsuyama, MD, PhD Hirotaka Haro, MD, PhD Mamoru Kawakami, MD, PhD Masashi Neo, MD

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2015 Spine Across the Sea Scientific Abstract Reviewers NASS thanks these volunteers who spent numerous hours reviewing abstracts: Sigurd H. Berven, MD Kazuhiro Chiba, MD, PhD Norman B. Chutkan, MD Russell C. DeMicco, DO Carrie A. Diulus, MD Edward J. Dohring, MD Minoru Doita, MD Lisa A. Ferrara, PhD Hirotaka Haro, MD, PhD Toru Hasegawa, MD, PhD Daniel J. Hoh, MD Patrick C. Hsieh, MD, MS Manabu Ito, MD, PhD Motoki Iwasaki, MD, PhD Jack Jallo, MD, PhD, FACS Louis G. Jenis, MD David Kartzman, DC Mamoru Kawakami, MD, PhD Shinichi Konno, MD Ajit A. Krishnaney, MD Ronald A. Lehman, MD Isador H. Lieberman, MD, FRCSC, MBA Morio Matsumoto, MD Yukihiro Matsuyama, MD, PhD Robert F. McLain, MD Timothy A. Moore, MD Hideki Nagashima, MD Hiroaki Nakamura, MD, PhD Masashi Neo, MD Donna D. Ohnmeiss, PhD Akihiro Okawa, MD, PhD R. Douglas Orr, MD, FRCSC Alpesh A. Patel, MD, FACS Srinivas K. Prasad, MD Joel M. Press, MD Daniel K. Resnick, MD K. Daniel Riew, MD Joshua D. Rittenberg, MD Koichi Sairyo, MD Daniel M. Sciubba, MD Francis H. Shen, MD John H. Shin, MD Richard L. Skolasky, ScD Jeremy S. Smith, MD Michael P. Steinmetz, MD Katsushi Takeshita, MD, PhD Eeric Truumees, MD Alan T. Villavicencio, MD Jeffrey C. Wang, MD Toshihiko Yamashita, MD Yasutsugu Yukawa, MD

MEETING INFORMATION Learning Objectives

Continuing Medical Education Credit

Upon completion of this meeting, participants will gain strategies to: • Promote discussion of new scientific developments and best practices within spine care organizations; • Demonstrate the application of current techniques, procedures and research; • Practice evidence- and value-based medicine relative to spine care; • Provide an environment for the exchange of ideas in spine care with experts and peers from around the globe.

This activity has been planned and implemented in accordance with the Essentials and Standards of the Accreditation Council for Continuing Medical Education (ACCME). The North American Spine Society is accredited by the ACCME to provide continuing medical education for physicians and takes responsibility for the content, quality and scientific integrity of this CME activity.

About NASS The North American Spine Society (NASS) is a multidisciplinary organization with approximately 8,000 members in North America and abroad. The membership consists of orthopedic surgeons, neurosurgeons, physiatrists, other medical/interventional physicians and affiliated healthcare professionals involved in spine care. The leading multidisciplinary organization in the field of spinal disorders, NASS’ mission is to foster the delivery of quality spine care.

About JSSR The Japanese Society for Spine Surgery and Related Research (JSSR) is the largest Japanese organization representing members in the field of spine and spinal cord disorders. JSSR has more than 3,600 members, mainly orthopedic surgeons. They hold an annual meeting and publish its official journal to promote basic research and clinical innovation.

The North American Spine Society designates this live activity for a maximum of 20 AMA PRA Category 1 Credits™. Physicians should claim only the credit commensurate with the extent of their participation in the activity. The American Medical Association has determined that physicians not licensed in the U.S. to participate in this CME activity are eligible for AMA PRA Category 1 Credits™. The American Academy of Physician Assistants (AAPA) accepts Category 1 credit from AOACCME, prescribed credit from the American Academy of Family Physicians (AAFP) and AMA PRA Category 1 CME™ credit for the Physician’s Recognition Award from organizations, such as NASS, accredited by the ACCME. Each state has different requirements for nurses, physical therapists and other nonphysician providers; please contact the credit granting organization for their requirements. For credit that may be acceptable to state medical associations, specialty societies or state boards for medical licensure, please contact those organizations for their requirements.

CME Certificates After the meeting, evaluations will be submitted electronically and CME certificates will be printed directly from our website at www.spine.org/CME. Contact [email protected] with questions. Forgotten passwords can be requested from the log-in page by using the email address used to register for the conference.

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MEETING INFORMATION Session Recordings OnDemand

Speaker Information Center

Order the Spine Across the Sea 2015 session recordings and receive 24/7 access to all conference content. These web-based, fully synchronized audio, video and slide presentations are available anywhere with internet access. Purchase at the registration desk or online at www.spineacrossthesea.org.

Grand Ballroom Foyer

After purchasing, visit www.spine.org/presentations to view audio, video and PowerPoint® slides for podium and symposia presentations. PowerPoint® slides for electronic posters also will be available on this webpage. Meeting content will be posted as it becomes available. All content will be posted no later than two weeks after the conference adjourns and will be available indefinitely.

Disclaimer The material presented at Spine Across the Sea is made available by the North American Spine Society for educational purposes only. The material is not intended to represent the only, nor necessarily the best, method or procedure appropriate for the medical situations discussed; rather, it is intended to present an approach, view, statement or opinion of the faculty which may be helpful to others who face similar situations.

Symposia presenters can upload or amend their presentations by visiting the Speaker Information Center in the Grand Ballroom Foyer at least 3 hours prior to the scheduled session start time. Speakers are not permitted to use their own laptops for their presentations. Podium and ePoster presentations cannot be uploaded or amended on site. No exceptions will be made. Speaker Information Center hours: Sunday, July 26. . . . . . . . . . . . . . . . . . . . . . . 2:00–6:00 p.m. Monday, July 27. . . . . . . . . . . . . . . . . . 6:30 a.m.–12:45 p.m. Tuesday, July 28. . . . . . . . . . . . . . . . . . 6:30 a.m.–12:45 p.m. Wednesday, July 29 . . . . . . . . . . . . . . 6:30 a.m.–12:45 p.m. Thursday, July 30 . . . . . . . . . . . . . . . . 6:30 a.m.–12:45 p.m.

Technical Exhibition Grand Ballroom Salon III Experience first-hand technology, products and services from vendors who can help you manage your professional goals and strategic objectives.

NASS disclaims any and all liability for injury or other damages to any individual attending the meeting and for all claims which may arise out of the use of the techniques demonstrated therein by such individuals, whether these claims shall be asserted by physicians or any other person.

Technical Exhibition hours: Monday, July 27. . . . . . . . . . . . . . . . . . 6:45 a.m.–12:00 p.m. Tuesday, July 28. . . . . . . . . . . . . . . . . . 6:45 a.m.–12:00 p.m. Wednesday, July 29 . . . . . . . . . . . . . . 6:45 a.m.–12:00 p.m. Thursday, July 30 . . . . . . . . . . . . . . . . . . . . 6:45–10:00 a.m.

On occasion, changes in program content or faculty may occur after the Preliminary Program has been distributed. This Final Program contains confirmed program content, faculty and presenters. Any further changes will be announced at the beginning of the session.

Wine and Cheese Opening Reception The Wine and Cheese Opening Reception marks the official start of Spine Across the Sea on Sunday, July 26, from 6:00–7:30 p.m. at the Coconut Grove at the Fairmont Orchid. This is an opportunity to see familiar faces and meet new colleagues.

SpinePAC Inaugural Golf Outing Registration required

Monday, July 27, 2015 2:00 p.m. Mauna Lani Bay, North Course NASS Board of Directors members Edward Dohring, MD, and Jeffrey C. Wang, MD along with NASS Past President, David A. Wong, MD, MSc, FRCS(C), and NASS SAS Program Co-Chair, Wellington K. Hsu, MD host SpinePAC’s inaugural golf outing at Mauna Lani Bay golf course. 6

DINING List of Restaurants (Distance from The Fairmont Orchid) Brown’s Beach House (at The Fairmont Orchid) 1 N. Kaniku Drive, Waimea Cuisines: Seafood, Contemporary Hale Kai Restaurant (at The Fairmont Orchid) 1 N. Kaniku Drive, Waimea Cuisine: Pub Luana Lounge (at The Fairmont Orchid) 1 N. Kaniku Drive, Waimea Cuisine: American Norio’s Japanese Restaurant & Sushi Bar (at The Fairmont Orchid) 1 N. Kaniku Drive, Waimea Cuisines: Japanese, Seafood, Sushi, Asian Fusion Ocean Bar Restaurant (at The Fairmont Orchid) 1 N. Kaniku Drive, Waimea Cuisines: American, Seafood The Orchid Court (at The Fairmont Orchid) 1 N. Kaniku Drive, Waimea Cuisine: Hawaiian Coast Grille & Oyster Bar (0.2 miles) Hapuna Beach Prince Hotel, 62-100 Kauna’oa Drive, Waimea Cuisine: Seafood CanoeHouse (0.6 miles) 68-1400 Mauna Lani Drive, Waimea Cuisines: Asian, Indonesian, Pacific Rim Monstera (0.7 miles) The Shops at Mauna Lani, 68-1330 Mauna Lani Drive, Waimea Cuisines: Japanese, Sushi Ruth’s Chris Steak House (0.7 miles) The Shops at Mauna Lani, 68-1330 Mauna Lani Drive, Waimea Cuisine: Steakhouse Tommy Bahama Restaurant & Bar (0.7 miles) The Shops at Mauna Lani, 68-1330 Mauna Lani Drive, Waimea Cuisines: American, Caribbean, Seafood Under the Bodhi Tree (0.7 miles) The Shops at Mauna Lani, 68-1330 Mauna Lani Drive, Waimea Cuisines: Vegetarian, Vegan Napua at Mauna Lani Beach Club (1.1 miles) 68-1292 S Kaniku Drive, Waimea Cuisine: Seafood Kamuela Provision Company (2.7 miles) 69-425 Waikoloa Beach Drive, Waikoloa Village Cuisines: Steakhouse, Seafood

Roy’s Waikoloa Bar & Grill (2.8 miles) 69-250 Waikoloa Beach Drive, Waikoloa Village Cuisines: American, Hawaiian Three Fat Pigs (2.8 miles) 69-250 Waikoloa Beach Drive, Waikoloa Village Cuisine: American Charlie’s Thai Cuisine (2.9 miles) Queens’ MarketPlace, 69-201 Waikoloa Beach Drive, Waikoloa Village Cuisine: Thai Ippy’s Hawaiian Barbeque (2.9 miles) Queens’ MarketPlace, 69-201 Waikoloa Beach Dr, Waikoloa Village Cuisine: Barbeque Sansei Seafood Restaurant & Sushi Bar (2.9 miles) Queens’ MarketPlace, 69-201 Waikoloa Beach Dr, Waikoloa Village Cuisines: Japanese, Seafood, Sushi Lava Lava Beach Club (3.2 miles) 69-1081 Ku’uali’i Pl, Waikoloa Village Cuisines: American, Eclectic Manta and Pavilion Wine Bar (4.4 miles) 62-100 Mauna Kea Beach Drive, Waimea Cuisine: Wine Bar Pueo’s Osteria (5.0 miles) 68-1845 Waikoloa Rd, Waikoloa Village Cuisine: Italian Blue Dragon Coastal Cuisine (6.3 miles) 61-3616 Kawaihae Road, Waimea Cuisines: Organic, Seafood, Fusion, Pacific Rim Plantation Grill (6.3 miles) 61-3642 Kawaihae Road, Waimea Cuisines: Steakhouse, Seafood The Seafood Bar and Grill (6.3 miles) 61-3642 Kawaihae Road, Waimea Cuisines: Steakhouse, Seafood Da Fish House (6.4 miles) 61-3659 Kawaihae-Mahukona Road, Waimea Cuisine: Seafood Kohala Burger and Taco (6.4 miles) 61-3665 Akoni Pule Highway, Kawaihae Cuisines: Mexican, American, Seafood Merriman’s Waimea Restaurant (18.25 miles) 65-1227 Opelo Road, Waimea Cuisine: Locally-sourced Hawaiian Bamboo Restaurant & Gallery (28.6 miles) 55-3415 Akoni Pule Highway, Hawi Cuisines: Pacific Rim, Hawaiian

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AREA ATTRACTIONS

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Kekaha Kai State Park Beautiful beaches and secluded bays encompass the park including Mahaiula Beach, Makalawena Beach and Kua Bay. The dark lava rocks, white sandy coves, green vegetation, deep blue water and offshore coral reef make for a nice contrast in colors, with great opportunities for swimming and snorkeling. Also, many ancient archaeological sites are located near Mahaiula Beach.

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Kalahuipua’a Historical Park

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Stroll through a lava field, cross a segment of an old paved Hawaiian footpath, and visit wonderfully scenic tropical fishponds that are still in use.

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Waikoloa Village

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Visit Waikoloa Village to experience Dolphin Quest, where you get up close and personal with the dolphins. 49 Black Sand Beach is a volcanic beach where sea turtles sun and snooze. Wear aqua/surf shoes when going to the beach. Anaehoomalu Beach is a salt and pepper sand beach perfect for swimming, diving and snorkeling. It is located near the historical King’s Trail where there are more than 2 acres of petroglyphs, rock shelters, trails and ancient sites scattered throughout the area.

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Puako Petroglyph Archaeological Preserve The Puako Petroglyph Archaeological Preserve features more than a thousand petroglyphs, lava rock carvings etched into stone centuries ago by Native Hawaiians. Just a short walk from The Fairmont Orchid Hawaii, Holoholokai Beach, you can see the carvings of human forms, canoes, turtles and others in the captivating petroglyph fields.

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Hapuna Beach Follow the signs on the volcanic western coastline of the Kohala Coast to one of Hawaii Island’s finest and largest white sand beaches, Hapuna Beach. Hapuna also offers consistently good conditions for swimming, bodyboarding, sunbathing and snorkeling.

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Hawi Spend a few hours browsing the peaceful haven of Hawi, North Kohala’s biggest little town. Set in the green northern tip of the island, historic Hawi is home to charming art galleries, boutiques and restaurants set in colorful plantation buildings. You’ll find everything from handmade jewelry and crafts to homemade fudge and 100% Kona coffee.

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Kapa’au Just beyond the lovely town of Hawi in North Kohala is the small town of Kapa’au where the original King Kamehameha I Statue stands not far from where Hawaii’s greatest king was born. A great warrior, diplomat and leader, King Kamehameha I united the Hawaiian Islands into one royal kingdom in 1810 after years of conflict.

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Puukohola Heiau

This National Historic Site is home to the majestic, stone Puukohola Heiau, one of the largest restored heiau (temple) in Hawaii. Constructed between 1790-1791, it is believed that the lava rocks used to build the structure were passed hand-byhand in a human chain all the way from Pololu Valley, some 25 miles away. You’ll also find the ruins of Mailekeini Heiau (built in the 1500’s), Hale o Kapuni (a submerged heiau dedicated to the shark gods) and the homestead of John Young, a stranded British sailor who became an aid to King Kamehameha I.

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Pololu Valley Overlook Continue driving east on Highway 270 from Kapaau and you’ll literally come to the end of the road at the stunning Pololu Valley Overlook. The incredible view overlooking the northeastern coastline will be the perfect way to end your journey.

MEETING-AT-A-GLANCE Sunday, July 26, 2015

Tuesday, July 28, 2015

2:00–6:00 p.m.

Attendee Registration Grand Ballroom Foyer

6:30–8:00 a.m.

Continental Breakfast Grand Ballroom Salon III

6:00–7:30 p.m.

Welcome Reception Coconut Grove

6:30 a.m.–12:45 p.m.

Attendee and Exhibitor Registration ePosters Grand Ballroom Foyer

6:45 a.m.–12:00 p.m.

Technical Exhibition Grand Ballroom Salon III

7:15–7:20 a.m.


Opening Remarks Grand Ballroom Salon I/II

7:20–9:05 a.m.

General Session: Diagnostics/Imaging Grand Ballroom Salon I/II

6:45 a.m.–12:00 p.m.


9:05–10:05 a.m.

7:15–7:20 a.m.


Symposium: Biologics: New Technologies and Stem Cells Grand Ballroom Salon I/II

10:05–10:35 a.m.

Networking Break Grand Ballroom Salon III

10:35–11:45 a.m.

General Session: Tumor/Infection Grand Ballroom Salon I/II

11:45 a.m.–12:45 p.m.

Symposium: Adult Spinal Deformity: Where Are We Now? Grand Ballroom Salon I/II

Monday, July 27, 2015 6:30–8:00 a.m.

6:30 a.m.–12:45 p.m.

7:20–9:05 a.m.

9:05–9:35 a.m.


General Session: Cervical Surgery I Grand Ballroom Salon I/II Networking Break Grand Ballroom Salon III

9:35–11:05 a.m.

Symposium: Cervical Myelopathy: Ossification of Posterior Longitudinal Ligament Grand Ballroom Salon I/II

11:05 a.m.–12:45 p.m.

General Session: Best Papers Grand Ballroom Salon I/II

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MEETING-AT-A-GLANCE

Wednesday, July 29, 2015

Thursday, July 30, 2015

6:30–8:00 a.m.


6:30–8:00 a.m.


6:30 a.m.–12:45 p.m.


6:30 a.m.–12:45 p.m.


6:45 a.m.–12:00 p.m.


6:45–10:00 a.m.


7:15–7:20 a.m.


7:15–7:20 a.m.


7:20–9:05 a.m.

General Session: Lumbar Surgery I Grand Ballroom Salon I/II

7:20–8:35 a.m.

General Session: Lumbar Surgery II Grand Ballroom Salon I/II

9:05–10:05 a.m.

Symposium: Minimally Invasive Spine Surgery: Degenerative Spondylolisthesis Debate Grand Ballroom Salon I/II

8:35–10:05 a.m.

10:05–10:35 a.m.

Networking Break Grand Ballroom Salon III

10:35–11:45 a.m.

General Session: Cervical Surgery II Grand Ballroom Salon I/II

11:45 a.m.–12:45 p.m.

Symposium: Management and Treatment of Sports-related Spine Injuries Grand Ballroom Salon I/II

General Session: Osteoporosis/ Stenosis Grand Ballroom Salon I/II

10:05–10:35 a.m.

Networking Break Grand Ballroom Foyer

10:35–11:35 a.m.

Symposium: Complications in Cervical Spine: My Worst Case Grand Ballroom Salon I/II

11:35 a.m.–12:45 p.m.

General Session: Outcomes Grand Ballroom Salon I/II

12:45 p.m.

Meeting Adjourns

Stop by Registration to Learn about FREE NASS Membership! Not already a member of NASS? Visit the registration area to complete an application for a complimentary membership for the remainder of 2015! This exclusive offer for nonmember attendees of the meeting includes access many essential benefits for spine care providers including subscriptions to the #1 spine journal, The Spine Journal (TSJ), and SpineLine, access to SpineConnect online, pricing discounts on education and products and much more!

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SUNDAY, JULY 26/MONDAY, JULY 27 Sunday, July 26, 2015 2:00–6:00 p.m.

Attendee Registration Grand Ballroom Foyer

7:26—7:32 a.m.

2. The Impact of Cervical Sagittal Imbalance on Laminoplasty Indicated to Patients with Cervical Myelopathy Minori Kato, MD1; Takashi Namikawa, MD, PhD1; Akira Matsumura, MD, PhD1; Shoichiro Ohyama, MD1; Hiroaki Nakamura, MD, PhD2 1 Osaka City General Hospital, Osaka, Japan; 2Osaka City University Graduate School of Medicine, Osaka, Japan

6:00–7:30 p.m.

Welcome Reception Coconut Grove

Monday, July 27, 2015 6:30–8:00 a.m.


6:30 a.m.–12:45 p.m.


6:45 a.m.–12:00 p.m.

FDA Device/Drug Status: This abstract does not discuss or include any applicable devices or drugs.

7:32–7:38 a.m.

3. Influence of Age and Gender on Cervical Spinal Alignment in Over 50-Year Old Volunteers Shin Oe, MD; Daisuke Togawa, MD, PhD; Keiichi Nakai, MD; Tomohiro Yamada, MD; Hideyuki Arima, MD, PhD; Tomohiro Banno, MD; Tatsuya Yasuda, MD; Sho Kobayashi, MD, PhD; Yu Yamato, MD, PhD; Tomohiko Hasegawa, MD, PhD; Yukihiro Matsuyama, MD, PhD Hamamatsu University School of Medicine, Department of Orthopedic Surgery, Hamamatsu, Japan FDA Device/Drug Status: This abstract does not discuss or include any applicable devices or drugs.

7:38–7:44 a.m.

4. Comparison of Anterior and Posterior Approaches for Surgical Treatment of Cervical Myelopathy Due to C3-4 Stenosis

Grand Ballroom Salon III

Koji Tamai1; Hidetomi Terai, MD, PhD1; Akinobu Suzuki, MD, PhD1; Hiromitsu Toyoda, MD, PhD1; Masatoshi Hoshino, MD2; Kazunori Hayashi, MD1; Hiroaki Nakamura, MD, PhD3

7:15–7:20 a.m.

1 Osaka City University, Osaka, Japan; 2Osaka City University Graduate School of Medicine, Department of Orthopedic Surgery, Osaka, Japan; 3Osaka City University Graduate School of Medicine, Osaka, Japan

Technical Exhibition



7:44–7:55 a.m. 7:20–9:05 a.m.

General Session: Cervical Surgery I Grand Ballroom Salon I/II

Discussion 7:55–8:01 a.m.

Moderators: Ronald A. Lehman, MD; Masashi Neo, MD

5. Assessment of Swallowing Function Using EAT-10: A Swallowing Assessment Tool

7:20–7:26 a.m.

Chikato Mannoji, MD, PhD1,2; Masaaki Aramomi, MD, PhD1,3; Masazumi Murakami, MD, PhD2; Masao Koda, MD, PhD4; Takeo Furuya, MD, PhD4

1. Comparison of One-Level Versus Two-Level Anterior Cervical Discectomy and Fusion: Clinical and Radiographic Follow-Up at 60 Months in Patients Serving as Control Groups in Randomized Trials Jack E. Zigler, MD1; Roger W. Rogers, DO2; Donna D. Ohnmeiss, PhD2 1 Texas Back Institute, Plano, TX, US; 2Texas Back Institute Research Foundation, Plano, TX, US

FDA Device/Drug Status: Cervical plate (Approved for this indication)

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1 Teikyo University Chiba Medical Center, Chiba, Japan; 2Chiba Aoba Municipal Hospital, Chiba, Japan; 3Sanmu Medical Center, Chiba, Japan; 4Chiba University Graduate School of Medicine, Chiba, Japan


MONDAY, JULY 27 8:01–8:07 a.m.

8:42–8:48 a.m.

6. Intraoperative Spinal Cord Monitoring with TceMEP for Investigation of Segmental Motor Paralysis After Cervical Laminoplasty

11. Vertebral Artery Variations and Osseous Anomaly at the C1/2 Level Diagnosed by 3D CT Angiography in Normal Patients

Nobuhiro Tanaka, MD1; Kazuyoshi Nakanishi2; Naouke Kamei, MD, PhD3; Takeshi Hiramatsu, MD3; Satoshi Ujigo, MD3; Takanori Rikita, MD3; Norihiko Sumiyoshi, MD3; Atsushi Takazawa, MD1; Mitsuo Ochi, MD1

Norimitsu Wakao, MD, PhD

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Hiroshima University, Department of Orthopedic Surgery, Hiroshima, Japan; Hirsoshima University, Hiroshima, Japan; 3Hiroshima, Japan

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8:07–8:13 a.m.

7. Medium- and Long-Term Surgical Outcomes of Thoracic Spondylotic Myelopathy Caused by Ossification of Spinal Ligaments: More Than Five Years Follow-Up

Aichi Medical University, Nagakute, Japan FDA Device/Drug Status: This abstract does not discuss or include any applicable devices or drugs.

8:48–8:54 a.m.

12. Safety and Accuracy of the Direct Pedicle Insertion Technique for Anterior Pedicle Screw Placement in the Subaxial Cervical Spine Masaaki Aramomi, MD, PhD1; Tetsuhiro Ishikawa, MD, PhD2; Chikato Mannoji, MD, PhD3; Masao Koda, MD, PhD4; Takeo Furuya, MD, PhD1; Masashi Yamazaki, MD5

1 National Okayama Medical Center, Okayama, Japan; 2Okayama University Hospital, Okayama, Japan; 3Okayama, Japan

1 Chiba, Japan; 2Sanmu Medical Center, Chiba, Japan; 3Chiba Aoba Municipal Hospital, Chiba, Japan; 4Chiba University Graduate School of Medicine, Department of Orthopedic Surgery, Chiba, Japan; 5Chiba University School of Medicine, Chiba, Japan



8:13–8:19 a.m.

8:54–9:05 a.m.

8. Postoperative Course of Postural Stability in Patients with Cervical Myelopathy Measured by Stabilometer

Discussion

Kazuhiro Takeuchi, MD1; Haruo Misawa, MD, PhD2; Shinnosuke Nakahara, MD3

Hiromitsu Toyoda, MD, PhD1; Hidetomi Terai, MD, PhD1; Masatoshi Hoshino, MD2; Akinobu Suzuki, MD, PhD1; Sho Dohzono, MD, PhD3; Shinji Takahashi, MD1; Koji Tamai1; Kazunori Hayashi, MD1; Hiroaki Nakamura, MD, PhD4

9:05–9:35 a.m.

Networking Break

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Osaka City University, Osaka, Japan; 2Osaka City University Graduate School of Medicine, Department of Orthopedic Surgery, Osaka, Japan; 3Japan; 4Osaka City University Graduate School of Medicine, Osaka, Japan



9:35–11:05 a.m.

8:19–8:30 a.m.


9. Quality of Life and Cost Implications of Anterior Cervical Discectomy and Fusion Pseudoarthrosis and Its Subsequent Revision Surgery Vikram A Mehta, MPH1,2,3; Charles Elliott, BS1,2,3; Daniel Lubelski, BA2,3,4; Jacob A. Miller, BS2,3,4; Edward Benzel, MD2,3,4; Thomas Mroz, MD2,3,4 Case Western Reserve University School of Medicine, Cleveland, Ohio, US; Cleveland Clinic Center for Spine Health, Cleveland Clinic, Cleveland, Ohio, US; 3 Cleveland Clinic, Department of Neurological Surgery, Cleveland, Ohio, US; 4 Cleveland Clinic Lerner College of Medicine, Cleveland, Ohio, US 1

2


8:36–8:42 a.m.

10. Predisposing Factors of Type II Odontoid Fractures in Elderly People Aged 75 Years and Older Masahiko Watanabe, MD, PhD1; Daisuke Sakai, MD2; Joji Mochida, MD, PhD1 1 Tokai University School of Medicine, Isehara, Kanagawa, Japan; 2Tokai University School of Medicine, Department of Orthopaedics, Isehara, Kanagawa, Japan


Symposium: Cervical Myelopathy: Ossification of Posterior Longitudinal Ligament Grand Ballroom Salon I/II Chairs/Moderators: John C. France, MD, NASS; Mamoru Kawakami, MD, PhD, JSSR This symposium outlines a variety of techniques to treat cervical myelopathy and OPLL and presents specific case examples to reinforce where, when, and how to utilize each technique. Upon completion of this session, participants should gain strategies to: • Identify patients that can be treated nonoperatively along with a strategy for determining how to monitor them; • Gain insight into when to utilize an anterior, posterior, or anterior/posterior approach to myelopathy; • Recognize the role in treatment and the technique of laminoplasty. Agenda When Can Cervical Stenosis Be Treated Nonoperatively and How to Monitor? Michael P. Steinmetz, MD, NASS When is an Anterior Alone Approach Best and How to Utilize it? John G. Devine, MD, NASS

13

MONDAY, JULY 27 When is it Best to Use Laminoplasty and When is Laminectomy and Fusion Preferred? Jeffery C. Wang, MD, NASS Does Laminoplasty Technique Matter and How to Perform Various Techniques Katsushi Takeshita, MD, PhD, JSSR When is it Necessary to Use an Anterior and Posterior Combined Strategy? Thomas E. Mroz, MD, NASS When is it Best to Treat OPLL Anterior and When Posterior? Yasutsugu Yukawa, MD, JSSR Complication Avoidance in OPLL, Tips on Ventral Techniques and Managing Leaks Ajit A. Krishnaney, MD Case Presentations to the Faculty and Open Discussion with Questions John C. France, MD, NASS FDA Device/Drug Status: Michael P. Steinmetz, MD: This presentation does not discuss or include any applicable devices or drugs. John G. Devine, MD: This presentation does not discuss or include any applicable devices or drugs. Jeffery C. Wang, MD: This presentation does not discuss or include any applicable devices or drugs. Katsushi Takeshita, MD, PhD: Hydroxyapatite spacer for cervical laminoplasty: Not approved for this indication. Thomas E. Mroz, MD: This presentation does not discuss or include any applicable devices or drugs. Yasutsugu Yukawa, MD: This presentation does not discuss or include any applicable devices or drugs. Ajit A. Krishnaney, MD: This presentation does not discuss or include any applicable devices or drugs. John C. France, MD: This presentation does not discuss or include any applicable devices or drugs. Mamoru Kawakami, MD, PhD: This presentation does not discuss or include any applicable devices or drugs.

11:05–12:45 p.m.

General Session: Best Papers Grand Ballroom Salon I/II Moderators: Jeffrey C. Wang, MD; Shinichi Konno, MD 11:05–11:11 a.m.

13. Long-Term Follow-Up Results of MIS-TLIF for Patients with Degenerative Disease of the Lumbar Spine: MIS Procedure Reduces Adjacent Segment Degeneration Akihito Wada, MD, PhD1; Yuichiro Yokoyama, MD2; Yasuaki Iida, MD3; Hiroshi Takahashi, MD3 Toho University School of Medicine, Tokyo, Japan; 2Toho University School of Medicine, Department of Orthopaedic Surgery, Tokyo, Japan; 3Tokyo, Japan 1

FDA Device/Drug Status: CD Horizon Sextant system (Approved for this indication), Capstone interbody cage (Approved for this indication), Telamon interbody cage (Approved for this indication), METRx tubular retractor system (Approved for this indication)

14

11:11–11:17 a.m.

14. Dioxin Exposure Inhibits Osteogenic Differentiation and Impairs Bone Healing in a Rat Spine Fusion Model Wellington K. Hsu, MD1; Chawon Yun, PhD1; Sean M. Mitchell, BS2; Abhishek Kannan, BS3; Kevin A. Sonn, MD4; Sharath S. Bellary, MD, MS1; Jonghwa Yun1; Sohaib Hashmi, MD5; Marco Mendoza, MD1; Michael S. Nickoli, MD6; John T. Nelson, MD5; Jason H. Ghodasra, MD7; Christian Park, BS5; Anjan Ghosh8; Akshay Jain, BS9; Stuart R. Stock, PhD5; Erin L. Hsu, PhD1 1 Northwestern University, Chicago, IL, US; 2Northwestern University, Department of Orthopaedic Surgery, Chicago, IL, US; 3Northwestern University Feinberg School of Medicine, Department of Orthopaedic Surgery, Chicago, IL, US; 4Maywood, IL, US; 5 Northwestern University Feinberg School of Medicine, Chicago, IL, US; 6Chicago, IL, US; 7Dalton, GA, US; 8Chicago, IL, US; 9Oak Brook, IL, US

FDA Device/Drug Status: Human Recombinant Bone Morphogenic Protein-2 (Approved for this indication), Resveratrol (Investigational/Not approved), Luteolin (Investigational/Not approved); 3 3’-Diindolylmethane (Investigational/Not approved), alpha-Naphthoflavone (Investigational/Not approved)

11:17–11:23 a.m.

15. Is Anterior Cervical Approach on the Right Side Safe? Frequency of Nonrecurrent Inferior Laryngeal Nerve Yuichiro Abe, MD, PhD1; Kentaro Yamada, MD2; Shigenobu Satoh, MD3 Eniwa Hospital, Eniwa, Japan; 2Osaka City University Graduate School of Medicine, Osaka, Japan; 3Eniwa Hospital, Hokkaido, Japan 1


11:23–11:29 a.m.

16. The Effect of Vancomycin Powder on Bone Healing in a Rat Spinal Arthrodesis Model Marco Mendoza, MD1; Kevin A. Sonn, MD2; Abhishek Kannan, BS3; Sharath S. Bellary, MD, MS4; Sean M. Mitchell, BS5; Christian Park, BS6; Gurmit Singh, MD7; Chawon Yun, PhD1; Anjan Ghosh8; Stuart R. Stock, PhD6; Erin L. Hsu, PhD1; Wellington K. Hsu, MD1 1 Northwestern University, Chicago, IL, US; 2Loyola University Medical Center, Maywood, IL, US; 3Northwestern University Feinberg School of Medicine, Department of Orthopaedic Surgery, Chicago, IL, US; 4Northwestern University, Chicago, IL, US; 5Northwestern University, Department of Orthopaedic Surgery, Chicago, IL, US; 6Northwestern University Feinberg School of Medicine, Chicago, IL, US; 7North Chicago, IL, US; 8Chicago, IL, US

FDA Device/Drug Status: BMP-2 (Approved for this indication), Vancomycin (Approved for this indication)

11:29–11:38 a.m.


17. Seasonal Variations in the Incidence of Surgical Site Infection Following Elective Spinal Surgery: A Retrospective Cohort Study Using the Japanese Diagnosis Procedure Combination Database Junichi Ohya, MD1; Hirotaka Chikuda, MD, PhD1; Yasushi Oshima, MD, PhD2 Tokyo, Japan; 2The University of Tokyo, Tokyo, Japan

1


MONDAY, JULY 27 11:44–11:50 a.m.

12:17–12:23 p.m.

18. Magnetic Resonance Neurography Allows Visualization of the Lumbar Plexus at the L4-5 Disc Space: Development of a Preoperative Surgical Planning Tool for Lateral Lumbar Transpsoas Interbody Fusion (LLIF)

22. Sagittal Malalignment Leads to Walking Disability: A TOEI Study

Darren R. Lebl, MD1; John C. Quinn, MD2; Joseph L. Chazen, MD3; Frank P. Cammisa Jr., MD4 New York, NY, US; 2Rutgers University, Newark, NY, US; 3Weill Cornell Medical College, New York, NY, US; 4The Hospital for Special Surgery, New York, NY, US 1


11:50–11:56 a.m.

19. Standing Posture and Sagittal Balance During Walking in Adult Spinal Deformity Patients Hideyuki Arima, MD1; Yu Yamato, MD, PhD2; Tomohiko Hasegawa, MD, PhD1; Daisuke Togawa, MD, PhD1; Sho Kobayashi, MD3; Tatsuya Yasuda, MD1; Tomohiro Banno, MD1; Shin Oe, MD1; Tomohiro Yamada, MD2; Keiichi Nakai, MD4; Yukihiro Matsuyama, MD, PhD1 Hamamatsu University School of Medicine, Hamamatsu, Japan; 2Hamamatsu University School of Medicine, Department of Orthopaedic Surgery, Hamamatsu, Japan; 3Hamamatsu-shi Shizuoka-ken, Japan; 4Hamamatsu, Japan

1

Keiichi Nakai, MD1; Tatsuya Yasuda, MD2; Tomohiko Hasegawa, MD, PhD2; Yu Yamato, MD, PhD3; Daisuke Togawa, MD, PhD2; Sho Kobayashi, MD4; Tomohiro Banno, MD2; Hideyuki Arima, MD2; Shin Oe, MD2; Tomohiro Yamada, MD3; Yukihiro Matsuyama, MD, PhD2 Hamamatsu, Japan; 2Hamamatsu University School of Medicine, Hamamatsu, Japan; 3Hamamatsu University School of Medicine, Department of Orthopaedic Surgery, Hamamatsu, Japan; 4Hamamatsu-shi Shizuoka-ken, Japan

1


12:23–12:29 p.m.

23. Comparative Study of the Surgical Outcomes of PLIF Between Patients Over 80 Years of Age and Under 80 Years: Minimum Two-Years Follow-Up Kazunori Hayashi, MD1; Akira Matsumura, MD, PhD2; Minori Kato, MD2; Sadahiko Konishi, MD, PhD3; Takashi Namikawa, MD, PhD2; Hiroaki Nakamura, MD, PhD4 Osaka City University, Osaka, Japan; 2Osaka City General Hospital, Osaka, Japan; Osaka General Hospital of Japan Railway Company, Osaka, Japan; 4Osaka City University Graduate School of Medicine, Osaka, Japan

1

3



11:56 a.m.–12:02 p.m.

12:29–12:35 p.m.

20. Anterior Decompression with Fusion Versus Posterior Decompression with Fusion for Massive Cervical Ossification of Posterior Longitudinal Ligament with 50% Canal Occupying Ratio or More Toshitaka Yoshii, MD Tokyo Medical & Dental University, Tokyo, Japan FDA Device/Drug Status: This abstract does not discuss or include any applicable devices or drugs.

12:02–12:11 p.m.

Discussion 12:11–12:17 p.m.

24. Postoperative Bending Activities After Long Corrective Fusion For Adult Spinal Deformity Daisuke Togawa, MD, PhD1; Tomohiko Hasegawa, MD, PhD1; Yu Yamato, MD, PhD2; Sho Kobayashi, MD3; Tatsuya Yasuda, MD1; Shin Oe, MD1; Hideyuki Arima, MD1; Tomohiro Banno, MD1; Tomohiro Yamada, MD2; Keiichi Nakai, MD4; Yukihiro Matsuyama, MD, PhD1 Hamamatsu University School of Medicine, Hamamatsu, Japan; 2Hamamatsu University School of Medicine, Department of Orthopaedic Surgery, Hamamatsu, Japan; 3Hamamatsu-shi Shizuoka-ken, Japan; 4Hamamatsu, Japan

1


12:35–12:45 p.m.

Discussion

21. The Etiology and Prognosis of C5 Palsy After Anterior Decompression with Spinal Fusion Yasuaki Imajo, MD1; Tsukasa Kanchiku, MD, PhD1; Hidenori Suzuki, MD, PhD2; Yuichiro Yoshida, MD2; Masahiro Funaba, MD2; Norihiro Nishida, MD3; Kazuhiro Fujimoto2; Toshihiko Taguchi, MD2 Ube, Japan; 2Yamaguchi University of Graduate School of Medicine, Ube, Yamaguchi, Japan; 3Yamaguchi University Graduate School of Medicine, Department of Orthopedic Surgery, Yamaguchi, Japan 1


15

TUESDAY, JULY 28 Tuesday, July 28, 2015 6:30–8:00 a.m.

Continental Breakfast

7:32–7:38 a.m.

27. The Normal Value of a Novel Spinopelvic Parameters (T1 Pelvic Angle and Global Tilt) in Japanese Elderly Volunteers


Tomohiro Banno, MD1; Daisuke Togawa, MD, PhD1; Tomohiko Hasegawa, MD, PhD1; Yu Yamato, MD, PhD2; Sho Kobayashi, MD3; Tatsuya Yasuda, MD1; Hideyuki Arima, MD1; Shin Oe, MD1; Yukihiro Matsuyama, MD, PhD1

6:30 a.m.–12:45 p.m.

1 Hamamatsu University School of Medicine, Hamamatsu, Japan; 2Hamamatsu University School of Medicine, Department of Orthopaedic Surgery, Hamamatsu, Japan; 3Hamamatsu-shi Shizuoka-ken, Japan



7:38–7:44 a.m. 6:45 a.m.–12:00 p.m.


28. A Morphometric Study of L4-L5 Lumbar Spine in L4 Spondylolisthesis: Analysis of Feasibility of the Oblique Lateral Interbody Fusion Approach Yusuke Hori1; Masatoshi Hoshino, MD2; Tadao Tsujio, MD, PhD1; Koji Mandai, MD3; Hiroaki Nakamura, MD, PhD4 Shiraniwa Hospital, Ikoma, Japan; 2Osaka City University Graduate School of Medicine, Department of Orthopedic Surgery, Osaka, Japan; 3Ikoma, Japan; 4Osaka City University Graduate School of Medicine, Osaka, Japan

1

7:15–7:20 a.m.



7:20–9:05 a.m.

7:44–7:55 a.m.

General Session: Diagnostics/Imaging Grand Ballroom Salon I/II Moderators: Carol Hartigan, MD; Toru Hasegawa, MD, PhD 7:20–7:26 a.m.

25. What MRI Findings Predict Pseudarthrosis of Osteoporotic Vertebral Fracture? A Multicenter Prospective Cohort Study Between 2012 and 2014


29. Relationship Between Age-Related Changes in the Paravertebral and Psoas Muscles of the Lumbar Spine and Low Back Pain: The Wakayama Spine Study

Shinji Takahashi, MD1; Masatoshi Hoshino, MD2; Hiromitsu Toyoda, MD, PhD1; Kazushi Takayama, MD, PhD3; Hiroyuki Yasuda, MD2; Hiroaki Nakamura, MD, PhD4

Hiroshi Hashizume, MD, PhD1; Noriko Yoshimura, MD, PhD2; Hiroshi Yamada, MD, PhD1; Hiroyuki Oka, MD2; Hiroki Iwahashi, MD1; Takahide Sasaki1; Masatoshi Teraguchi, MD, PhD1; Keiji Nagata, MD, PhD1; Yuyu Ishimoto, MD, PhD1; Ryohei Kagotani, MD, PhD1; Shigeyuki Muraki, MD, PhD2; Akihito Minamide, MD, PhD1; Yukihiro Nakagawa, MD, PhD1; Munehito Yoshida, MD, PhD1

1 Osaka City University, Osaka, Japan; 2Osaka City University Graduate School of Medicine, Department of Orthopedic Surgery, Osaka, Japan; 3Seikeikai Hospital, Osaka, Japan; 4Osaka City University Graduate School of Medicine, Osaka, Japan

1 Wakayama Medical University, Department of Orthopaedic Surgery, Wakayama, Japan; 222nd Century Medical and Research Center, The University of Tokyo, Tokyo, Japan



7:26–7:32 a.m.

8:01–8:07 a.m.

26. Radiographic Changes in the Paravertebral Muscles of the Lumbar Spine Associated with the C7 Sagittal Vertical Axis: The Wakayama Spine Study Hiroshi Hashizume, MD, PhD1; Noriko Yoshimura, MD, PhD2; Hiroshi Yamada, MD, PhD1; Hiroyuki Oka, MD2; Masatoshi Teraguchi, MD, PhD1; Hiroki Iwahashi, MD1; Yoshiki Asai, MD1; Shunji Tsutsui, MD, PhD1; Takahide Sasaki, MD1; Kazunori Shinto, MD1; Hiroshi Iwasaki, MD, PhD1; Shigeyuki Muraki, MD, PhD2; Akihito Minamide, MD, PhD1; Yukihiro Nakagawa, MD, PhD1; Munehito Yoshida, MD, PhD1 1 Wakayama Medical University, Department of Orthopaedic Surgery, Wakayama, Japan; 222nd Century Medical and Research Center, The University of Tokyo, Tokyo, Japan


30. Sarcopenia and Lumbar Spondylosis in Community Dwelling People Tetsuro Hida, MD; Shiro Imagama, MD Nagoya University Graduate School of Medicine, Nagoya, Japan FDA Device/Drug Status: This abstract does not discuss or include any applicable devices or drugs.

8:07–8:13 a.m.

31. Accuracy of Robotic-Guided Pedicle Screw Placement Takashi Fujishiro, MD; Shingo Fukumoto, MD; Yoshiharu Nakaya, MD; Atsushi Nakano, MD, PhD; Kenta Fujiwara, MD, PhD; Ichiro Baba, MD, PhD; Masashi Neo, MD, PhD Osaka Medical College, Osaka, Japan FDA Device/Drug Status: This abstract does not discuss or include any applicable devices or drugs.

16

TUESDAY, JULY 28 8:13–8:19 a.m.

8:54–9:05 a.m.

32. The Impact of Low-Intensity Pulsed Ultrasound (LIPUS) on Spinal Fusion After Posterior Lumbar Interbody Fusion (PLIF) Procedure

Discussion

Yasutsugu Yukawa, MD1; Hiroaki Nakashima, MD2

9:05–10:05 a.m.

1 Chubu Rosai Hospital, Nagoya, Japan; 2Nagoya University Graduate School of Medicine, Department of Orthopedic Surgery, Nagoya, Japan


Symposium: Biologics: New Technologies and Stem Cells Grand Ballroom Salon I/II Chairs/Moderators: Jeffrey C. Wang, MD, NASS; Hirotaka Haro, MD, PhD, JSSR

8:19–8:30 a.m.

Discussion

Faculty present an evidence-based update on new and existing biologic and regenerative strategies for the treatment of spinal disorders.

8:30–8:36 a.m.

33. Incidence and Risk Factors for Venous Thromboembolism After Spine Surgery Katsuhito Yoshioka, MD ; Hideki Murakami ; Satoru Demura, MD ; Satoshi Kato, MD, PhD1; Hiroyuki Tsuchiya, MD, PhD4 1

2

3

1 Kanazawa University, Kanazawa, Japan; 2Kanazawa, Japan; 3Kanazawa University, Department of Orthopaedic Surgery, Kanazawa, Japan; 4Kanazawa University School of Medicine, Kanazawa, Japan


8:36–8:42 a.m.

34. Comparative Study of Adjacent Segment Disease Between TLIF and Microscopic Bilateral Decompression via Unilateral Approach in L4 Spondylolisthesis: A Minimum FiveYear Follow-Up Shoichiro Ohyama, MD1; Akira Matsumura, MD, PhD1; Takashi Namikawa, MD, PhD1; Minori Kato, MD1; Hiroaki Nakamura, MD, PhD2 Osaka City General Hospital, Osaka, Japan; 2Osaka City University Graduate School of Medicine, Osaka, Japan 1


8:42–8:48 a.m.

35. One Institute Rod Fractures Incidence After Long Spinal Corrective Fusion for Adult Spinal Deformities Using Iliac Screws Tatsuya Yasuda, MD1; Tomohiko Hasegawa, MD, PhD1; Yu Yamato, MD, PhD2; Sho Kobayashi, MD3; Daisuke Togawa, MD, PhD1; Tomohiro Banno, MD1; Hideyuki Arima, MD1; Shin Oe, MD1; Yukihiro Matsuyama, MD, PhD1 Hamamatsu University School of Medicine, Hamamatsu, Japan; Hamamatsu University School of Medicine, Department of Orthopaedic Surgery, Hamamatsu, Japan; 3Hamamatsu-shi Shizuoka-ken, Japan 1

2


8:48–8:54 a.m.

36. The Effect for the Neuropathic Pain of Serotonin Noradrenaline Reuptake Inhibitors (SNRIs) by Nucleus Pulposus Applied on the Nerve Root in Rats

Upon completion of this session, participants should gain strategies to: • Apply the current evidence supporting the current use of biologics in spinal fusion surgery; • Critique the current treatment strategies for spinal cord injury and regeneration; • Recognize the role of stem cells for the treatment of spinal disorders. Agenda Stem Cells for Spine Surgery: What Are the Current and Future Uses of Stem Cells for the Treatment of Spinal Disorders? Wellington K. Hsu, MD, NASS Spinal Cord Injury: Current and Future Treatment Strategies Masahiko Watanabe, MD, PhD, JSSR Evidence of Biologics for Spinal Fusion: What Works, What Does Not Work? Patrick C. Hsieh, MD, NASS Disc Regeneration: Current and Future Treatment Strategies Daisuke Sakai, MD, JSSR Future Considerations for Biological Strategies Jeffrey C. Wang, MD, NASS Discussion Faculty Panel FDA Device/Drug Status: Jeffrey C. Wang, MD: Gene therapy for growth factor delivery: Not approved for this indication; BMP binding proteins: Not approved for this indication. Hirotaka Haro, MD, PhD: Recombinant human MMP-7: Investigational for this indication. Wellington K. Hsu, MD: Stem cells for spine surgery: Approved for this indication. Masahiko Watanabe, MD, PhD: Amiloride: Approved for this indication. Patrick C. Hsieh, MD: rhBMP-2: Not approved for this indication; Stem cell for spinal fusion: Investigational for this indication. Daisuke Sakai, MD: This presentation does not discuss or include any applicable devices or drugs.

Junichi Handa, MD1; Miho Sekiguchi, MD2; Shin-ichi Konno, MD3

10:05–10:35 a.m.

Fukushima Medical University School of Medicine, Department of Orthopaedic Surgery, Fukushima, Japan; 2Fukushima Medical University School of Medicine, Fukushima, Japan; 3Fukushima Medical University, Fukushima, Japan

Networking Break

1


FDA Device/Drug Status: Duloxetine (Approved for this indication)

17

TUESDAY, JULY 28 10:35–11:45 a.m.

10:59–11:05 a.m.

General Session: Tumor/Infection

41. Characteristics of the Intractable Postoperative Pain of Intramedullary Spinal Cord Tumors

Grand Ballroom Salon I/II Moderators: Daniel M. Sciubba, MD; Toshihiko Taguchi, MD 10:35–10:41 a.m.

37. Effect of rhBMP-2 on Lung Cancer Spine Metastasis in Rodents Marco Mendoza, MD1; Abhishek Kannan, BS2; Kevin A. Sonn, MD3; Sharath S. Bellary, MD, MS1; Chawon Yun, PhD1; Sohaib Hashmi, MD4; John T. Nelson, MD4; Amruta Ashtekar5; Anjan Ghosh6; Michael S. Nickoli, MD6; Jason H. Ghodasra, MD6; Michael Okoli, BA6; Stuart R. Stock, PhD4; Erin L. Hsu, PhD1; Wellington K. Hsu, MD1 1 Northwestern University, Chicago, IL, US; 2Northwestern Feinberg School of Medicine, Department of Orthopaedic Surgery, Chicago, IL, US; 3Loyola University Medical Center, Maywood, IL, US; 4Northwestern University Feinberg School of Medicine, Chicago, IL, US; 5Columbus, OH, US; 6Chicago, IL, US

FDA Device/Drug Status: Recombinant bone morphogenetic protein 2 (Not approved for this indication)

10:41–10:47 a.m.

38. Clinical Outcome for Reconstructions After Total En Bloc Spondylectomy at Three or More Levels Katsuhito Yoshioka, MD1; Hideki Murakami2; Satoru Demura, MD3; Satoshi Kato, MD, PhD1; Hiroyuki Tsuchiya, MD, PhD4 1 Kanazawa University, Kanazawa, Japan; 2Kanazawa, Japan; 3Kanazawa University, Department of Orthopaedic Surgery, Kanazawa, Japan; 4Kanazawa University School of Medicine, Kanazawa, Japan


10:47–10:53 a.m.

39. Survival and Prognostic Factors After Surgical Resection of Isolated Spinal Metastases from Renal Cell Carcinoma Satoshi Kato, MD, PhD1; Hideki Murakami2; Satoru Demura, MD3; Katsuhito Yoshioka, MD1; Hiroyuki Tsuchiya, MD, PhD4 1 Kanazawa University, Kanazawa, Japan; 2Kanazawa, Japan; 3Kanazawa University, Department of Orthopaedic Surgery, Kanazawa, Japan; 4Kanazawa University School of Medicine, Kanazawa, Japan


10:53–10:59 a.m.

40. Tumor Recurrence After the Use of Frozen Tumor-Bearing Autograft During Total En Bloc Spondylectomy Takashi Igarashi, MD1; Hideki Murakami2; Satoru Demura, MD1; Satoshi Kato, MD, PhD3; Katsuhito Yoshioka, MD3; Hiroyuki Tsuchiya, MD, PhD4 1 Kanazawa University School of Medicine, Department of Orthopaedic Surgery, Kanazawa, Japan; 2Kanazawa, Japan; 3Kanazawa University, Kanazawa, Japan; 4 Kanazawa University School of Medicine, Kanazawa, Japan


Hideyuki Arima, MD1; Tomohiko Hasegawa, MD, PhD1; Daisuke Togawa, MD, PhD1; Yu Yamato, MD, PhD2; Sho Kobayashi, MD3; Tatsuya Yasuda, MD1; Tomohiro Banno, MD1; Shin Oe, MD1; Tomohiro Yamada, MD2; Keiichi Nakai, MD4; Yukihiro Matsuyama, MD, PhD1 Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, Japan; Hamamatsu University School of Medicine, Department of Orthopaedic Surgery, Hamamatsu, Japan; 3Hamamatsu-shi Shizuoka-ken, Japan; 4Hamamatsu, Japan

1

2


11:05–11:13 a.m.


42. Radiologic Progression of Vertebral Fractures in Patients with Multiple Myeloma Roy Xiao, BA1; Jacob Miller1; Vikram Mehta, MPH2; Joseph Featherall1; Konstantinos Margetis, MD, PhD, FRCS3; Daniel Lubelski, BA4; Isador H. Lieberman, MD, FRCSC, MBA5; Edward C. Benzel, MD1; Thomas E. Mroz, MD6 Cleveland Clinic Foundation, Cleveland, OH, US; 2Cleveland Heights, OH, US; 3New York, NY, US; 4Cleveland, OH, US; 5Texas Back Institute, Plano, TX, US; 6Cleveland Clinic Foundation, Departments of Orthopaedic and Neurological Surgery, Cleveland, OH, US

1


11:19–11:25 a.m.

43. Patient-Reported Outcome and Quality of Life After En Bloc Spondylectomy for Primary Spinal Tumors Takashi Igarashi, MD1; Hideki Murakami2; Satoru Demura, MD1; Satoshi Kato, MD, PhD3; Katsuhito Yoshioka, MD3; Hiroyuki Tsuchiya, MD, PhD4 1 Kanazawa University School of Medicine, Department of Orthopaedic Surgery, Kanazawa, Japan; 2Kanazawa, Japan; 3Kanazawa University, Kanazawa, Japan; 4 Kanazawa University School of Medicine, Kanazawa, Japan


11:25–11:31 a.m.

44. Surgical Outcomes in Vertebral Osteomyelitis: Reoperation, Complication and Mortality Rates Jacob Miller1; Rebecca L. Achey2; Adeeb Derakhshan3; Daniel Lubelski, BA2; Vikram Mehta, MPH3; Edward C. Benzel, MD1; Thomas E. Mroz, MD4 Cleveland Clinic Foundation, Cleveland, OH, US; 2Cleveland, OH, US; 3Cleveland Heights, OH, US; 4Cleveland Clinic Foundation, Departments of Orthopaedic and Neurological Surgery, Cleveland, OH, US

1


11:31–11:37 a.m.

45. Occult Pathogens: Are They the Missing Link to Failed Back Syndrome? Darren R. Lebl, MD1; Tucker C. Callanan, BS2; Frank P. Cammisa Jr., MD2; Byung Jo Victor Yoon, MS2; Celeste Abjornson, PhD2 1

New York, NY, US; 2Hospital for Special Surgery, New York, NY, US


11:37–11:45 a.m.

18

Discussion

TUESDAY, JULY 28 11:45 a.m.–12:45 p.m.

Symposium: Adult Spinal Deformity: Where Are We Now?

SESSION RECORDINGS ON DEMAND

Grand Ballroom Salon I/II

If you missed a session or want to review content from Spine Across the Sea, it is available OnDemand. You can gain access to abstract presentations, symposia and electronic posters at your convenience.

Chairs/Moderators: Ronald A. Lehman, MD, NASS; Michael Y. Wang, MD, NASS; Yukihiro Matsuyama, MD, PhD, JSSR This symposium discusses current treatment strategies for adult spinal deformity with emphasis on factors for proximal junctional kyphosis, minimally invasive surgery and cervical contributions for sagittal alignment. Upon completion of this session, participants should gain strategies to: • Identify sagittal parameters and alignment; • Discuss cost effectiveness and understand the role of spinal osteotomies; • Analyze causative factors for proximal junctional kyphosis, MIS and cervical contributions to sagittal alignment. Agenda Proximal Junctional Kyphosis: What We Know, Considerations on Prevention and Thoughts Moving Forward Christopher I. Shaffrey, MD, NASS Cost Analysis for Adult Spinal Deformity: Is Surgery Cost Effective and What is the MCID Data? Eric O. Klineberg, MD, NASS

And you will receive up to 20 AMA PRA Category 1 CreditsTM. These web-based, fully synchronized audio, video and slide presentations are available for purchase. View Spine Across the Sea 2015 and many other OnDemand offerings at www.spine.org. North American Spine Society is accredited by the Accreditation Council for Continuing Medical Education to provide continuing medical education for physicians. The North American Spine Society designates this enduring material for a maximum of 20 AMA PRA Category 1 Credits™. Physicians should claim only the credit commensurate with the extent of their participation in the activity.

What is the Role of MIS in Adult Deformity: Can We Achieve Similar Results and Outcomes? Michael Y. Wang, MD, NASS Is the Role of Performing a Three Column Osteotomy Changing: Indications, Considerations and Pearls Jason W. Savage, MD, NASS Dynamic Sagittal Balance in Adult Spinal Deformity: SVA and PT in Static Standing are Totally Different From Those in Walking Hiroshi Taneichi, MD, JSSR Surgical Management of De Bovo and Non-De Novo Adult Spinal Deformity; Clinical Feature and Postoperative Results Masashi Takaso, MD, JSSR FDA Drug/Device Status: Ronald A. Lehman, Jr., MD: This presentation does not discuss or include any applicable devices or drugs. Michael Y. Wang, MD: Not available at time of publication. Yukihiro Matsuyama, MD, PhD: This presentation does not discuss or include any applicable devices or drugs. Christopher I. Shaffrey, MD: Not available at time of publication. Eric O. Klineberg, MD: This presentation does not discuss or include any applicable devices or drugs. Jason W. Savage, MD: Pedicle Screws: Approved for this indication. Hiroshi Taneichi, MD: This presentation does not discuss or include any applicable devices or drugs. Masashi Takaso, MD: This presentation does not discuss or include any applicable devices or drugs.

19

WEDNESDAY, JULY 29 Wednesday, July 29, 2015

7:38–7:44 a.m.

49. Comparative Study at Difference of Perioperative Complication, Cage Location and Sagittal Alignment: MISOLIF (Minimally Invasive Oblique Lateral Lumbar Interbody Fusion) Versus MIS-DLIF (Direct Lateral Lumbar Interbody Fusion)

6:30–8:00 a.m.


Jung-Woo Hur, MD; Kyeong-Sik Ryu, MD

6:30 a.m.–12:45 p.m.

The Catholic University of Korea, Seoul St. Mary’s Hospital, Seoul, South Korea

Attendee and Exhibitor Registration ePosters


Grand Ballroom Foyer 7:44–7:55 a.m.

Discussion

6:45 a.m.–12:00 p.m.

Technical Exhibition

7:55–8:01 a.m.


50. Lateral Versus Anterior Lumbar Interbody Fusion: Intraoperative Outcomes from a Prospective Multicenter Study

7:15–7:20 a.m.

Kee D. Kim, MD1; K. Brandon Strenge, MD2; Alexandre B. de Moura, MD3; Peter G. Passias, MD4; Ryan P. DenHaese, MD5; Paul M. Arnold, MD6; Camille Moore, MS7; Brieta Bejin, MS8; Sarah B. Martineck, PA-C9; Chris Ferry, MSc10; Kimberly Martin4


7:20–9:05 a.m.

General Session: Lumbar Surgery I Grand Ballroom Salon I/II Moderators: Hyun W. Bae, MD; Hiroaki Nakamura, MD, PhD 7:20–7:26 a.m.

46. An 11-Year Minimum Follow-Up of the Charite III Lumbar Disc Replacement for the Treatment of Symptomatic Degenerative Disc Disease Yong Hai, MD, PhD Chaoyang Hospital Capital Medical University, Beijing, China FDA Device/Drug Status: This abstract does not discuss or include any applicable devices or drugs.

7:26–7:32 a.m.

47. Long Percutaneous Pedicle Screws Reduced Screw Loosening After Lumber Facet Fusion Surgery in Degenerative Spondylolisthesis Akihiro Nagamachi, MD1; Kosuke Sugiura, MD2; Yasuaki Tamaki, MD2; Koichi Sairyo, MD3 Kanoji, Kagawa, Japan; Mitoyo General Hospital, Kanonji, Japan; University of Tokushima, Tokushima, Japan 1

2

3

1 UC Davis School of Medicine, Sacramento, CA, US; 2The Orthopaedic Institute of Western KY, Paducah, KY, US; 3New York Spine Institute, New York, NY, US; 4 Brooklyn, NY, US; 5AXIS Neurosurgery and Spine, Williamsville, NY, US; 6University of Kansas Medical Center, Department of Neurosurgery, Kansas City, KS, US; 7 Niwot, CO, US; 8Broomfield, CO, US; 9Buffalo Spine Surgery, Lockport, NY, US; 10 Parsippany, NJ, US


8:01–8:07 a.m.

51. Comparison of Clinical Outcomes for Anterior Versus 360 Fusion at the Fusion Level of Lumbar Hybrid (Total Disc Replacement/Fusion) Surgery Ernesto R. Otero-Lopez, MD1; Scott L. Blumenthal, MD2; Richard D. Guyer, MD2; Jack E. Zigler, MD2; Donna D. Ohnmeiss, PhD1 1 Texas Back Institute Research Foundation, Plano, TX, US; 2Texas Back Institute, Plano, TX, US

FDA Device/Drug Status: Charite, ProDisc-L one-level (Approved for this indication), Charite two-level (Not approved for this indication), ProDisc-L two-level (Investigational/Not approved)

8:07–8:13 a.m.

52. Rigid Interspinous Process Fixation Versus Pedicle Screw Fixation: Intraoperative Outcomes in a Prospective Randomized Multicenter Trial


Kee D. Kim, MD1; K. Brandon Strenge, MD2; Alexandre B. de Moura, MD3; Peter G. Passias, MD4; Ryan P. DenHaese, MD5; Paul M. Arnold, MD6; Camille Moore, MS7; Brieta Bejin, MS8; Sarah B. Martineck, PA-C9; Chris Ferry, MSc10; Kimberly Martin4

7:32–7:38 a.m.

1 UC Davis School of Medicine, Sacramento, CA, US; 2The Orthopaedic Institute of Western KY, Paducah, KY, US; 3New York Spine Institute, New York, NY, US; 4 Brooklyn, NY, US; 5AXIS Neurosurgery and Spine, Williamsville, NY, US; 6University of Kansas Medical Center, Department of Neurosurgery, Kansas City, KS, US; 7 Niwot, CO, US; 8Broomfield, CO, US; 9Buffalo Spine Surgery, Lockport, NY, US; 10 Parsippany, NJ, US

48. The Timing of Surgery and Symptom Resolution in Patients Undergoing Transforaminal Lumbar Interbody Fusion for Lumbar Degenerative Disc Disease and Radiculopathy Alan T. Villavicencio, MD; Sigita Burneikiene, MD; Ewell L. Nelson, MD; Alexander Mason, MD; Sharad Rajpal, MD Boulder Neurosurgical & Spine Associates, Boulder, CO, US FDA Device/Drug Status: rhBMP-2 (Not approved for this indication)

20

FDA Device/Drug Status: Aspen MIS Fusion System (Approved for this indication)

WEDNESDAY, JULY 29 8:13–8:19 a.m.

8:48–8:54 a.m.

53. Load and Position Induced Changes Within the Spinal Canal: A Possible Interaction Between the Ligamentum Flavum and the Epidural Fat in the Constriction of the Cauda Equina

57. A Prognostic Factor After the Brace Treatment of Adolescent Idiopathic Scoliosis: Does the Insufficient Rotation Correction of the Apical Vertebra Worsen the Prognosis?

Nobuyuki Suzuki, MD, PhD; Seiji Otsuka, MD, PhD; Yoshihisa Matsumoto

Kentaro Yamane, MD1,2; Masato Tanaka, MD2; Kensuke Shinohara, MD2

Nagoya City University Graduate School of Medical Sciences Department of Orthopaedic Surgery, Nagoya, Japan

1 Fukuyama Medical Center, Department of Orthopaedic Surgery, Fukuyama, Hiroshima, Japan; 2Okayama University Hospital, Department of Orthopaedic Surgery, Okayama, Okayama, Japan


8:19–8:30 a.m.


8:54–9:05 a.m.

Discussion

Discussion

8:30–8:36 a.m.

54. The Ideal Lumbar Lordosis Angle for Restoring an Optimal Pelvic Tilt in Elderly Patients with Adult Spinal Deformity Yu Yamato, MD, PhD ; Tomohiko Hasegawa, MD, PhD ; Sho Kobayashi, MD ; Tatsuya Yasuda, MD2; Daisuke Togawa, MD, PhD1; Tomohiro Banno, MD2; Hideyuki Arima, MD1; Takahiro Iida, MD4; Akira Matsumura, MD, PhD5; Naobumi Hosogane6; Morio Matsumoto, MD7; Yukihiro Matsuyama, MD, PhD2 1

2

3

Hamamatsu University School of Medicine, Department of Orthopaedic Surgery, Hamamatsu, Japan; 2Hamamatsu University School of Medicine, Hamamatsu, Japan; 3Hamamatsu-shi Shizuoka-ken, Japan; 4Dokkyo Medical University, Koshigaya Hospital, Koshigaya, Japan; 5Osaka City General Hospital, Osaka, Japan; 6 Saitama, Japan; 7Keio University School of Medicine, Tokyo, Japan 1


8:36–8:42 a.m.

55. Optimal Lumbar Lordosis Harmonizing with Pelvic Incidence for a Sagittal Balance Correction Planning in Adult Spinal Deformity Surgery Satoshi Inami, MD, PhD1; Hiroshi Moridaira, MD, PhD2; Daisaku Takeuchi, MD3; Futoshi Asano, PhD4; Kentaro Nakayama, MD2; Yutaka Nohara, MD5; Hiroshi Taneichi, MD3 1 Dokkyo Medical University, Tochigi, Japan; 2Dokkyo Medical University School of Medicine, Tochigi, Japan; 3Mibu, Japan; 4Tochigi, Japan; 5Dokkyo Medical University, Orthopedic Department, Mibu, Tochigi, Japan


8:42–8:48 a.m.

56. Relationship Between Spinopelvic Alignment and Osteoarthritis of the Knee and Hip in Elderly Volunteers: The TOEI Study Hiroki Ushirozako1; Sho Kobayashi, MD2; Tomohiko Hasegawa, MD, PhD3; Yu Yamato, MD, PhD4; Daisuke Togawa, MD, PhD3; Tatsuya Yasuda, MD3; Hideyuki Arima, MD3; Tomohiro Banno, MD3; Tomohiro Yamada, MD4; Yukihiro Matsuyama, MD, PhD3 Enshu Hospital, Shizuoka, Japan; 2Hamamatsu-shi Shizuoka-ken, Japan; Hamamatsu University School of Medicine, Hamamatsu, Japan; 4Hamamatsu University School of Medicine, Department of Orthopaedic Surgery, Hamamatsu, Japan

1

3


9:05-10:05 a.m.

Symposium: Minimally Invasive Spine Surgery: Degenerative Spondylolisthesis Debate Grand Ballroom Salon I/II Chairs/Moderators: John G. DeVine, MD, NASS; Munehito Yoshida, MD, PhD, JSSR Faculty debate current treatment strategies for degenerative spondylolisthesis with emphasis on debating traditional open versus MIS techniques. Upon completion of this session, participants should gain strategies to: • Appreciate the role of MIS surgery as it relates to degenerative spondylolisthesis; • Recognize the indications for the use of interbody fusion in degenerative spondylolisthesis; • Choose the appropriate implants and approach to achieve the goal of surgical treatment. Agenda Role of Decompression Alone: Is There Any Advantage of MIS Over Open Surgery? Michael P. Steinmetz, MD, NASS Open Decompression and Posterior Lateral Fusion: Do We Even Need an Interbody? Minoru Doita, MD, PhD, JSSR Role of MIS Lateral Interbody Fusion and Indirect Decompression Patrick C. Hsieh, MD, NASS Open TLIF/PLIF: When is an Open Approach Ideal? John C. France, MD, NASS MIS TLIF: Is This the New Workhorse of Degenerative Spondylolisthesis? Seiji Ohtori, MD, JSSR Discussion Faculty Panel

21

WEDNESDAY, JULY 29 FDA Drug/Device Status: John G. DeVine, MD: This presentation does not discuss or include any applicable devices or drugs. Munehito Yoshida, MD, PhD: Not available at time of publication. Michael P. Steinmetz, MD: Not available at time of publication. Minoru Doita, MD, PhD: This presentation does not discuss or include any applicable devices or drugs. Patrick C. Hsieh, MD: rhBMP-2: Not approved for this indication; Stem Cell for spinal fusion: Investigational for this indication. John C. France, MD: This presentation does not discuss or include any applicable devices or drugs. Seiji Ohtori, MD: This presentation does not discuss or include any applicable devices or drugs.

10:53–10:59 a.m.

61. Clinical Outcome of Cervical Laminoplasty and Postoperative Radiological Change in Cervical Myelopathy with Degenerative Spondylolisthesis Akinobu Suzuki, MD, PhD1; Hidetomi Terai, MD, PhD1; Hiromitsu Toyoda, MD, PhD1; Sho Dohzono, MD, PhD2; Shinji Takahashi, MD1; Kazunori Hayashi, MD1; Hiroaki Nakamura, MD, PhD3 1 Osaka City University, Osaka, Japan; 2Japan; 3Osaka City University Graduate School of Medicine, Osaka, Japan


10:59–11:10 a.m. 10:05–10:35 a.m.

Networking Break

Discussion


11:10–11:16 a.m.

10:35–11:45 a.m.

Hidenori Suzuki, MD, PhD1; Tsukasa Kanchiku, MD, PhD2; Yasuaki Imajo, MD2; Yuichiro Yoshida, MD1; Norihiro Nishida, MD3; Toshihiko Taguchi, MD3

General Session: Cervical Surgery II Grand Ballroom Salon I/II Moderators: Kee D. Kim, MD; Yasutsugu Yukawa, MD 10:35–10:41 a.m.

58. Clinical Outcomes Following Anterior Cervical Hybrid Surgery Using Total Disc Replacement Combined with Anterior Cervical Fusion at the Adjacent Segment Roger W. Rogers, DO1; Scott L. Blumenthal, MD2; Richard D. Guyer, MD2; Jack E. Zigler, MD2; Donna D. Ohnmeiss, PhD1 1 Texas Back Institute Research Foundation, Plano, TX, US; 2Texas Back Institute, Plano, TX, US

FDA Device/Drug Status: Cervical TDR for single level (Approved for this indication)

10:41–10:47 a.m.

59. Efficacy of Posterior Segmental Decompression Surgery for Pincer Mechanism in Cervical Spondylotic Myelopathy: A Retrospective Case-Control Study Using Propensity Score Matching Akihito Minamide, MD, PhD1; Munehito Yoshida, MD, PhD2; Hiroshi Yamada, MD, PhD3; Hiroshi Hashizume, MD, PhD3; Yukihiro Nakagawa3; Hiroshi Iwasaki, MD3; Shunji Tsutsui, MD, PhD2; Motohiro Okada, MD, PhD2; Shin-ichi Nakao, MD, PhD4; Hiroyuki Oka, MD5

62. Clinical Features of Atypical Cervical Myelopathy with False Localizing Sensory Levels

Yamaguchi University Graduate School of Medicine, Ube, Japan; 2Ube, Japan; Yamaguchi University Graduate School of Medicine, Department of Orthopedic Surgery, Yamaguchi, Japan 1

3


11:16–11:22 a.m.

63. The Surgical Outcomes of Posterior Fixation for Cervical Myelopathy in Patients with Athetoid Cerebral Palsy: FiveYear Follow-Up Kazuyuki Watanabe, MD; Takuya Nikaido, MD, PhD; Kinshi Kato, MD, PhD; Shoji Yabuki, MD; Shin-ichi Konno, MD Fukushima Medical University, Fukushima, Japan FDA Device/Drug Status: This abstract does not discuss or include any applicable devices or drugs.

11:22–11:28 a.m.

64. Magnetic Resonance Imaging of the Cervical Spine Underrepresents Sagittal Plane Deformity in Degenerative Myelopathy Patients Douglas S. Weinberg, MD1; Arunit J. Chugh2; Jason D. Eubanks, MD3 1 University Hospitals, Case Medical Center, Cleveland, OH, US; 2Case Western Reserve University School of Medicine, Cleveland, OH, US; 3Waite Hill, OH, US

1 Wakayama Medical University Orthopaedics, Wakayama, Japan; 2Wakayama Medical University, Wakayama, Japan; 3Wakayama, Japan; 4Spine Care Center, Wakayama Medical University Kihoku Hospital, Wakayama, Japan; 5Tokyo, Japan



11:28–11:34 a.m.

10:47–10:53 a.m.

60. Characteristics of Cervical Spine Injury in Ankylosing Spinal Hyperostosis: A Multicenter Retrospective Study Hideki Tashi; Akiyoshi Yamazaki, MD; Tomohiro Izumi; Tatsuki Mizouchi

65. Frequency of Progression of Cervical Myelopathy in Neck Extension in Dental Treatment and Active Neck Motion Yuichiro Abe, MD, PhD1; Kentaro Yamada, MD2; Shigenobu Satoh, MD3 Eniwa Hospital, Eniwa, Japan; 2Osaka City University Graduate School of Medicine, Osaka, Japan; 3Eniwa Hospital, Hokkaido, Japan 1

Spine Center, Orthopedic Department of Niigata Central Hospital, Niigata, Japan



11:34–11:45 a.m.

Discussion

22

WEDNESDAY, JULY 29 11:45 a.m.–12:45 p.m.

Symposium: Management and Treatment of Sports-related Spine Injuries Grand Ballroom Salon I/II Chairs/Moderators: Wellington K. Hsu, MD, NASS; Koichi Sairyo, MD, PhD, JSSR This symposium evaluates current concepts regarding diagnosis, management, treatment, and return-to-play criteria of common cervical and lumbar spinal injuries from contact sports such as American football, basketball, and hockey. Faculty review the latest evidence-based literature regarding treatment principles of spine injuries in athletes. Case studies also are presented to elucidate important treatment algorithm principles based on age, sport played, and symptom profile. Upon completion of this session, participants should gain strategies to: • Identify special considerations for acute lumbar disc herniation in the contact sport athlete; • Evaluate the treatment options for a cervical disc herniation in an elite athlete; • Recognize the importance of transient quadriparesis in return-to-play criteria; • Set patient expectations depending on sport played and other mitigating factors. Agenda Introduction/Welcome Wellington K. Hsu, MD, NASS Management of Cervical Disc Herniation in the Elite Athlete Alexander R. Vaccaro, MD, PhD, NASS Considerations for Treatment of Lumbar Disc Herniation in the Collision Athlete Wellington K. Hsu, MD, NASS Case-based Management of Congenital/Developmental Spinal Anomalies in the Elite Athlete Population Andrew Cordover, MD, MS, NASS On-field Acute Management of Spinal Cord Injury/Transient Quadriparesis Masao Koda, MD, PhD, JSSR Management of Acute Pars Fracture in the Adolescent Patient Koichi Sairyo, MD, PhD, JSSR Discussion Faculty Panel FDA Drug/Device Status: All Presenters: These presentations do not discuss or include any applicable devices or drugs.

23

THURSDAY, JULY 30 Thursday, July 30, 2015 6:30–8:00 a.m.


7:32–7:38 a.m.

68. Invasiveness of Facet Fusion with Percutaneous Pedicle Screw Fixation Compared with Posterolateral Fusion with Open Pedicle Screw Fixation in Degenerative Spondylolisthesis of the Lumbar Spine Akihiro Nagamachi, MD1; Kosuke Sugiura, MD2; Yasuaki Tamaki, MD2; Koichi Sairyo, MD3

6:30 a.m.–12:45 p.m.


1 Kanoji, Kagawa, Japan; 2Mitoyo General Hospital, Kanonji, Japan; 3University of Tokushima, Tokushima, Japan


7:38–7:44 a.m. 6:45–10:00 a.m.


69. Direct Lateral Lumbar Interbody Fusion Versus Oblique Lateral Interbody Fusion: A Comparison of Preliminary Radiological Outcomes and Complications Jin-Sung Kim, MD, PhD Seoul, South Korea

7:15–7:20 a.m.



7:44–7:57 a.m.


General Session: Lumbar Surgery II Grand Ballroom Salon I/II Moderators: Jason W. Savage, MD; Katsushi Takeshita, MD, PhD 7:20–7:26 a.m.

66. Mini-Open Anterior Lumbar Interbody Fusion (Mini-ALIF) for Degenerative Spondylolisthesis Kazuhiro Takeuchi, MD1; Haruo Misawa, MD, PhD2; Shinnosuke Nakahara, MD3 1 National Okayama Medical Center, Okayama, Japan; 2Okayama University Hospital, Okayama, Japan; 3Okayama, Japan


7:26–7:32 a.m.

67. Spinopelvic Sagittal Imbalance Predisposes to Adjacent Segment Disease After Posterior Lumbar Interbody Fusion Tomiya Matsumoto, MD, PhD1; Shinya Okuda, MD, PhD2; Takafumi Maeno, MD2; Tomoya Yamashita, MD2; Ryoji Yamasaki3; Motoki Iwasaki, MD, PhD2

7:57–8:03 a.m.

70. Reoperation and Revision Rates of Minimum Invasive Decompression for Lumbar Stenosis Associated with Degenerative Scoliosis and Lateral Slippage Minori Kato, MD1; Takashi Namikawa, MD, PhD1; Akira Matsumura, MD, PhD1; Shoichiro Ohyama, MD1; Hiroaki Nakamura, MD, PhD2 1 Osaka City General Hospital, Osaka, Japan; 2Osaka City University Graduate School of Medicine, Osaka, Japan


8:03–8:09 a.m.

71. Clinical and Radiological Outcome of Microendoscopic Laminotomy for Degenerative Lumbar Spondylolisthesis in Comparison with the Cases Without Spondylolisthesis Akinobu Suzuki, MD, PhD1; Hiromitsu Toyoda, MD, PhD1; Hidetomi Terai, MD, PhD1; Sho Dohzono, MD, PhD2; Tomiya Matsumoto, MD, PhD3; Hiroaki Nakamura, MD, PhD4 1 Osaka City University, Osaka, Japan; 2Japan; 3Sakai, Japan; 4Osaka City University Graduate School of Medicine, Osaka, Japan

Sakai, Japan; 2Osaka Rosai Hospital, Sakai, Osaka, Japan; 3Nara, Japan



8:09–8:15 a.m.

1

72. Lumbar Degenerative Spondylolisthesis Treated with Lateral Interbody Fusion Versus Transforaminal Lumbar Interbody Fusion: A Comparative Study of Two MIS Techniques Juanita Garces, MD1; Mansour Mathkour, MD2; Teresa Arrington, BA3; Olawale Sulaiman, MD4 Tulane Medical Center, New Orleans, LA, US; 2Ochsner Medical Center, Jefferson, LA, US; 3Harvey, LA, US; 4Ochsner Clinic Foundation, Department of Neurosurgery, New Orleans, LA, US

1

24


THURSDAY, JULY 30 8:15–8:21 a.m.

8:56–9:03 a.m.

73. Comparison of Clinical Results and Fusion Rates in PLIF Between Plate System and Rod System

77. Teriparatide May Improve the Low Back Pain and QOL of the Patients with Delayed Union of Osteoporotic Vertebral Fracture

Takafumi Maeno, MD1; Shinya Okuda, MD, PhD1; Tomiya Matsumoto, MD, PhD2; Ryoji Yamasaki3; Tomoya Yamashita, MD1; Takenori Oda, MD4; Motoki Iwasaki, MD, PhD1 1

Osaka Rosai Hospital, Sakai, Osaka, Japan; 2Sakai, Japan; 3Nara, Japan; Department of Orthopedic Surgery, Osaka, Japan

4

Yuichiro Yoshida, MD1; Tsukasa Kanchiku, MD, PhD2; Yasuaki Imajo, MD2; Hidenori Suzuki, MD, PhD1; Norihiro Nishida, MD3; Masahiro Funaba, MD1; Kazuhiro Fujimoto1; Toshihiko Taguchi, MD1 Yamaguchi University Graduate School of Medicine, Ube, Japan; 2Ube, Japan; Yamaguchi University Graduate School of Medicine, Department of Orthopedic Surgery, Yamaguchi, Japan 1


3

FDA Device/Drug Status: Teriparatide (Approved for this indication)

8:21–8:35 a.m.

Discussion

9:03–9:20 a.m.


9:20–9:27 a.m.

General Session: Osteoporosis/Stenosis Moderators: John H. Shin, MD; Toshitaka Yoshii, MD

78. Stenotic Ratio is the Most Useful Parameter to Identify Patients with Lumbar Foraminal Stenosis Needing Surgery or Not: MRI Study Using 3D T1 SPACE Sequence

8:35–8:42 a.m.

Kentaro Yamada, MD1; Yuichiro Abe, MD, PhD2; Shigenobu Satoh, MD3; Hiroaki Nakamura, MD, PhD1

Grand Ballroom Salon I/II

74. Differences Between Cases with Bone Union and Cases with Intravertebral Cleft Following Osteoporotic Vertebral Fractures Hiroyuki Yasuda, MD ; Masatoshi Hoshino, MD ; Hidetomi Terai, MD, PhD ; Hiromitsu Toyoda, MD, PhD2; Akinobu Suzuki, MD, PhD2; Sho Dohzono, MD, PhD3; Shinji Takahashi, MD4; Hiroaki Nakamura, MD, PhD5 1

1

2

Osaka City University Graduate School of Medicine, Department of Orthopedic Surgery, Osaka, Japan; 2Osaka City University, Osaka, Japan; 3Japan; 4Osaka City University, Osaka, Japan; 5Osaka City University Graduate School of Medicine, Osaka, Japan 1


8:42–8:49 a.m.

75. Risk Factors for Middle Column Injury Following Osteoporotic Vertebral Fractures Masatoshi Hoshino, MD1; Hidetomi Terai, MD, PhD2; Takashi Namikawa, MD, PhD3; Minori Kato, MD3; Akira Matsumura, MD, PhD3; Akinobu Suzuki, MD, PhD2; Hiromitsu Toyoda, MD, PhD2; Kazushi Takayama, MD, PhD4; Hiroaki Nakamura, MD, PhD5 Osaka City University Graduate School of Medicine, Department of Orthopedic Surgery, Osaka, Japan; 2Osaka City University, Osaka, Japan; 3Osaka City General Hospital, Osaka, Japan; 4Seikeikai Hospital, Osaka, Japan; 5Osaka City University Graduate School of Medicine, Osaka, Japan 1


8:49–8:56 a.m.

76. Severe Low Back Pain in Patients with Rheumatoid Arthritis is Associated with Disease Activity Score but Not with Radiological Findings on Plain X-rays Kentaro Yamada, MD1; Akinobu Suzuki, MD, PhD2; Shinji Takahashi, MD2; Hiroyuki Yasuda, MD3; Hiroaki Nakamura, MD, PhD3 Osaka City University Graduate School of Medicine, Osaka, Japan; 2Osaka City University, Osaka, Japan; 3Osaka City University Graduate School of Medicine, Department of Orthopedic Surgery, Osaka, Japan 1


1 Osaka City University Graduate School of Medicine, Osaka, Japan; 2Eniwa Hospital, Eniwa, Japan; 3Eniwa Hospital, Hokkaido, Japan


9:27–9:34 a.m.

79. The Influence of Preoperative Spinal Sagittal Balance on Clinical Outcomes After Microendoscopic Laminotomy in Patients with Lumbar Spinal Canal Stenosis Sho Dohzono, MD, PhD1; Hiromitsu Toyoda, MD, PhD2; Akinobu Suzuki, MD, PhD2; Masatoshi Hoshino, MD3; Hidetomi Terai, MD, PhD2; Hiroaki Nakamura, MD, PhD4 1 Japan; 2Osaka City University, Osaka, Japan; 3Osaka City University Graduate School of Medicine, Department of Orthopedic Surgery, Osaka, Japan; 4Osaka City University Graduate School of Medicine, Osaka, Japan


9:34–9:41 a.m.

80. Long-Term Clinical Outcomes After Microendoscopic Laminotomy for Lumbar Spinal Stenosis: A Five-Year FollowUp Study Akihito Minamide, MD, PhD1; Munehito Yoshida, MD, PhD2; Hiroshi Yamada, MD, PhD3; Hiroshi Hashizume, MD, PhD3; Yukihiro Nakagawa3; Hiroshi Iwasaki, MD3; Shunji Tsutsui, MD, PhD2; Motohiro Okada, MD, PhD2; Shin-ichi Nakao, MD, PhD4 1 Wakayama Medical University Orthopaedics, Wakayama, Japan; 2Wakayama Medical University, Wakayama, Japan; 3Wakayama, Japan; 4Spine Care Center, Wakayama Medical University Kihoku Hospital, Wakayama, Japan


9:41–9:48 a.m.

81. Elevated Levels of Phosphorylated Neurofilament Heavy Subunit in the Cerebrospinal Fluid of Patients with Lumbar Spinal Stenosis Junichi Ohya, MD1; Hirotaka Chikuda, MD, PhD1; Toru Ogata, MD, PhD2; Yasushi Oshima, MD, PhD3; So Kato, MD4 1 Tokyo, Japan; 2National Rehabilitation Center, Saitama, Japan; 3University of Tokyo, Tokyo, Japan; 4Hospital for Sick Children, Toronto, ON, Canada


25

THURSDAY, JULY 30 9:48–10:05 a.m.

11:35 a.m.–12:45 p.m.

Discussion

General Session: Outcomes Grand Ballroom Salon I/II

10:05–10:35 a.m.

Networking Break Grand Ballroom Foyer

10:35–11:35 a.m.

Symposium: Complications in Cervical Spine: My Worst Case Grand Ballroom Salon I/II Chairs/Moderators: Ajit A. Krishnaney, MD, NASS; John H. Shin, MD, NASS; Masashi Yamazaki, MD, JSSR In this interactive symposium, the faculty panel discusses cases of complications associated with cervical spine surgery with emphasis on avoidance and management strategies. Audience participation is encouraged. Upon completion of this session, participants should gain strategies to: • Identify intraoperative and postoperative complications early in their course; • Manage intraoperative complications to mitigate poor outcomes; • Determine strategies to avoid catastrophic and common complications. Agenda Paralysis After Cervical Deformity Surgery John H. Shin, MD, NASS Vertebral Artery Injury Ajit A. Krishnaney, MD, NASS C5 Nerve Root Palsy Thomas E. Mroz, MD, NASS

Moderators: Ajit A. Krishnaney, MD and TBD 11:35–11:41 a.m.

82. Risk Factors for Residual Low Back Pain Associated with Lumbar Spinal Stenosis Following Decompression Surgery Hiroshi Yamada, MD, PhD1; Hiroyuki Oka, MD2; Munehito Yoshida, MD, PhD3; Hiroshi Hashizume, MD, PhD1; Akihito Minamide, MD, PhD4; Yukihiro Nakagawa1; Hiroshi Iwasaki, MD1; Shunji Tsutsui, MD, PhD3; Shin-ichi Nakao, MD, PhD5; Motohiro Okada, MD, PhD3 1 Wakayama, Japan; 2Tokyo, Japan; 3Wakayama Medical University, Wakayama, Japan; 4Wakayama Medical University Orthopaedics, Wakayama, Japan; 5Spine Care Center, Wakayama Medical University Kihoku Hospital, Wakayama, Japan


11:41–11:47 a.m.

83. The Reoperation Rate in a Single Dataset Varies Significantly Depending on the Definitions Applied Donna D. Ohnmeiss, PhD1; Scott L. Blumenthal, MD2; Richard D. Guyer, MD2; Jack E. Zigler, MD2 1 Texas Back Institute Research Foundation, Plano, TX, US; 2Texas Back Institute, Plano, TX, US


11:47–11:53 a.m.

84. Functional Outcome and Cost-Utility Analysis of MiniOpen Thoracolumbar Corpectomy Versus Open Corpectomy Juanita Garces, MD1; Robert Jones, BA2; Tyler Scullen, BA2; Edison Valle, MD3; Teresa Arrington, BA4; Cuong J. Bui, MD5; Olawale Sulaiman, MD6 Tulane Medical Center, New Orleans, LA, US; 2New Orleans, LA, US; 3Tulane University, New Orleans, LA, US; 4Harvey, LA, US; 5Ochsner Medical Center, New Orleans, LA, US; 6Ochsner Clinic Foundation, Department of Neurosurgery, New Orleans, LA, US 1


Hardware Failure/Kyphosis Daniel M. Sciubba, MD, NASS

11:53–11:59 a.m.

Esophageal Injury and Management Toshitaka Yoshii, MD, JSSR

85. The Global Burden of Spine Fractures: A Prospective Multicenter Evaluation

Progressive Neurological Deficit/Myelopathy After Laminoplasty Hideki Nagashima, MD, PhD, JSSR

Ilyas Aleem, MD, FRCSC1; Clary J. Foote, MD2; Dylan DeMarco, BHSc3; Sohail Shariff, BS4; Nathan Evaniew, MD5; Brian M. Drew, FRCSC, PT2; Raman Mundi, MD2; Parag Sancheti, MD5; Vijay Shetty, MD6; Mandeep Dhillon, MD7; Mohit Bhandari, MD, PhD, FRCSC8

FDA Drug/Device Status: All Presenters: These presentations do not discuss or include any applicable devices or drugs.

McMaster University, Hamilton, ON, Canada; 2Hamilton, ON, Canada; 3Ancaster, ON, Canada; 4Mississauga, ON, Canada; 5Pune, India; 6Mumbai, India; 7Chandigarh, India; 8Burlington, ON, Canada

1


11:59 a.m.–12:10 p.m.

Discussion

26

THURSDAY, JULY 30 12:10–12:16 p.m.

86. A Pilot Study of the Utility of a Laboratory-Based Spinal Fixation Training Program for Neurosurgical Residents Swetha Sundar, BS1; Andrew T. Healy, MD2; Varun Kshettry, MD3; Thomas E. Mroz, MD4; Edward C. Benzel, MD5 1 Cleveland Clinic, Cleveland, OH, US; 2Bay Village, OH, US; 3Shaker Heights, OH, US; 4Cleveland Clinic Foundation Departments of Orthopaedic and Neurological Surgery, Cleveland, OH, US; 5Cleveland Clinic Foundation, Cleveland, OH, US


12:16–12:22 p.m.

87. Trans Articular Surface Screw (TASS): A New Screw Insertion Trajectory of Sacrum Hidetomi Terai, MD, PhD1; Akinobu Suzuki, MD, PhD1; Hiromitsu Toyoda, MD, PhD1; Masatoshi Hoshino, MD2; Kazunori Hayashi, MD1; Koji Tamai1; Shinji Takahashi, MD1; Hiroaki Nakamura, MD, PhD3 Osaka City University, Osaka, Japan; 2Osaka City University Graduate School of Medicine, Department of Orthopedic Surgery, Osaka, Japan; 3Osaka City University Graduate School of Medicine, Osaka, Japan 1


12:22–12:28 p.m.

88. Pregnancy After Lumbar Total Disc Replacement Jack E. Zigler, MD1; Richard D. Guyer, MD1; Scott L. Blumenthal, MD1; Donna D. Ohnmeiss, PhD2 Texas Back Institute, Plano, TX, US; 2Texas Back Institute Research Foundation, Plano, TX, US

1

FDA Device/Drug Status: Charte, ProDisc-L for single-level (Approved for this indication), Activ-L, Kineflex-L, Flexicore, ProDisc-L for 2-level (Investigational/Not approved)

12:28–12:34 p.m.

89. Cost and Quality of Life Implications of Adjacent Segment Disease Following Lumbar Fusion Vincent J. Alentado, BS1; Daniel Lubelski, BA1; Andrew T. Healy, MD1; Jacob Miller2; R. Douglas Orr, MD, FRCSC3; Michael P. Steinmetz, MD4; Edward C. Benzel, MD2; Thomas E. Mroz, MD5; Swetha Sundar4 Cleveland Heights, OH, US; 2Cleveland Clinic Foundation, Cleveland, OH, US; Cleveland Clinic Spine Institute Lutheran Hospital, Cleveland, OH, US; 4Cleveland Clinic, Cleveland, OH, US; 5Cleveland Clinic Foundation, Departments of Orthopaedic and Neurological Surgery, Cleveland, OH, US

1

3


12:34–12:45 p.m.

Discussion 12:45 p.m.

Meeting Adjourns

27

ELECTRONIC POSTERS P1. Correlations of Cervical Sagittal Alignment Before and After Occipitocervical Fixation Yoshitaka Matsubayashi, MD1; Takachika Shimizu, MD2; Hirotaka Chikuda, MD, PhD1; Yasushi Oshima, MD, PhD1

P6. A Detailed Analysis of the Etiology of Neck and/or Shoulder Pain in Patients with Cervical Spondylotic Myelopathy Based on the Postoperative Change in the Region and Properties of the Pain

The University of Tokyo, Tokyo, Japan; 2Guma Spine Center, Gunma, Japan

Yuto Ogawa, MD1; Osahiko Tsuji, MD, PhD2

1


P2. Predisposing Characteristics of Adjacent Segment Disease Following Lumbar Fusion Vincent J. Alentado, BS1; Daniel Lubelski, BA1; Andrew T. Healy, MD1; R. Douglas Orr, MD, FRCSC2; Michael P. Steinmetz, MD3; Edward C. Benzel, MD4; Thomas E. Mroz, MD5 Cleveland Heights, OH, US; 2Cleveland Clinic Spine Institute Lutheran Hospital, Cleveland, OH, US; 3Cleveland Clinic, Cleveland, OH, US; 4Cleveland Clinic Foundation, Cleveland, OH, US; 5Cleveland Clinic Foundation, Departments of Orthopaedic and Neurological Surgery, Cleveland, OH, US 1


P3. Central Motor Conduction Time in the Diagnosis of Cervical Compressive Myelopathy Masahiro Funaba, MD1; Tsukasa Kanchiku, MD, PhD2; Yasuaki Imajo, MD2; Hidenori Suzuki, MD, PhD1; Yuichiro Yoshida, MD1; Norihiro Nishida, MD3; Kazuhiro Fujimoto1; Toshihiko Taguchi, MD1 Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, Japan; 2 Ube, Japan; 3Yamaguchi University Graduate School of Medicine, Department of Orthopedic Surgery, Yamaguchi, Japan

1


P4. Intraoperative Assessment of the Maximal Insertion Torque for Lateral Mass Screws: Relationship of Insertion Torque and Circumference Clear Zone of Screw Takashi Chikawa, MD, PhD1; Shunichi Toki, MD2; Masahiro Kashima, MD3; Shunji Nakano, MD, PhD1; Masaru Nakamura, MD1; Koichi Sairyo, MD4 1 Tokushima Municipal Hospital, Tokushima, Japan; 2Kochi, Japan; 3Tokushima, Japan; 4University of Tokushima, Tokushima, Japan


Tokyo, Japan; 2Saitama, Japan

1


P7. Usefulness of Liaison Treatment and Minimally Invasive Spine Stabilization (MISt) for Metastatic Spinal Tumors Kazuo Nakanishi, MD, PhD1; Toru Hasegawa, MD, PhD2 1

Kurashiki, Okayama, Japan; 2Kawasaki Medical School, Kurashiki, Okayama, Japan


P8. Stress Analysis of the Cervical Spinal Cord: Effect of the Morphology of Spinal Cord Segments on Stress Norihiro Nishida, MD1; Tsukasa Kanchiku, MD, PhD2; Yasuaki Imajo, MD2; Hidenori Suzuki, MD, PhD3; Yuichiro Yoshida, MD3; Toshihiko Taguchi, MD3 1 Yamaguchi University Graduate School of Medicine, Department of Orthopedic Surgery, Yamaguchi, Japan; 2Ube, Japan; 3Yamaguchi University Graduate School of Medicine, Ube, Japan


P9. Classification Setting of Pathological Stages of Lumbar Spinal Stenosis Including Degenerative Spondylolisthesis: A Clinical Outcome of Microendoscopic Laminotomy on Each Stage

Akihito Minamide, MD, PhD1; Munehito Yoshida, MD, PhD2; Hiroshi Yamada, MD, PhD3; Hiroshi Hashizume, MD, PhD3; Yukihiro Nakagawa3; Hiroshi Iwasaki, MD3; Shunji Tsutsui, MD, PhD2; Motohiro Okada, MD, PhD2; Shin-ichi Nakao, MD, PhD4 1 Wakayama Medical University Orthopaedics, Wakayama, Japan; 2Wakayama Medical University, Wakayama, Japan; 3Wakayama, Japan; 4Spine Care Center, Wakayama Medical University Kihoku Hospital, Wakayama, Japan


P10. Chemonucleolysis with Recombinant Human MMP-7 P5. Preoperative Lumbar Spine Dysfunction Might Affect Clinical Outcomes of Lumbar Spinal Stenosis Patients Treated with Decompression and Fusion

Hirotaka Haro, MD, PhD University of Yamanashi, Yamanashi, Japan FDA Device/Drug Status: rh MMP-7 (Investigational/Not approved)

Mamoru Kawakami, MD, PhD ; Yuyu Ishimoto, MD ; Keiji Nagata, MD ; Tomoko Kitagawa, CPC2; Shoko Morishita, None2; Toshiko Matsuoka, RN2 1

1

2

2

Wakayama Medical University, Kihoku Hospital, Wakayama, Japan; 2Ito Gun, Japan


P11. Facetectomy Can Widen the Foraminal Diameter More than Foraminotomy to Prevent Iatrogenic Foraminal Stenosis After Cervical Posterior Fusion Akiyoshi Yamazaki, MD; Tomohiro Izumi; Tatsuki Mizouchi; Hideki Tashi Spine Center, Orthopedic Department of Niigata Central Hospital, Niigata, Japan

28


ELECTRONIC POSTERS P12. Outcome After Anterior Cervical Fusion Using a Cervical Stand-Alone Fusion Cage

P17. Characteristics of Lumbar Spondylolysis in Elementary School Age Children

Christopher M. Happ, DO1; Scott L. Blumenthal, MD2; Richard D. Guyer, MD2; Jack E. Zigler, MD2; Donna D. Ohnmeiss, PhD1

Yoichiro Takata, MD, PhD1; Toshinori Sakai, MD, PhD2; Yuichiro Goda, MD2; Fumitake Tezuka, MD1; Kosaku Higashino, MD, PhD1; Koichi Sairyo, MD3

1 Texas Back Institute Research Foundation, Plano, TX, US; 2Texas Back Institute, Plano, TX, US

1

FDA Device/Drug Status: PEEK cervical cages (Approved for this indication)


P13. Pathophysiology of Proximal Type Cervical Spondylotic Amyotrophy Estimated from the Results Obtained with Pre- and Postoperative Compound Muscle Action Potentials and Clinical Outcome of Medial Facetectomy of the Cervical Spine Yasuaki Tamaki, MD1; Akihiro Nagamachi, MD2; Kosuke Sugiura, MD1; Koichi Sairyo, MD3 Mitoyo General Hospital, Kanonji, Japan; Kanoji, Kagawa, Japan; 3University of Tokushima, Tokushima, Japan 1

2


P14. Radiological Analysis of the Cervical Lordotic Angle and Sagittal Spinal Alignment in Adolescent Idiopathic Scoliosis Kazunori Hayashi, MD1; Hiromitsu Toyoda, MD, PhD1; Hidetomi Terai, MD, PhD1; Akinobu Suzuki, MD, PhD1; Masatoshi Hoshino, MD2; Koji Tamai1; Hiroaki Nakamura, MD, PhD3 1 Osaka City University, Osaka, Japan; 2Osaka City University Graduate School of Medicine, Department of Orthopedic Surgery, Osaka, Japan; 3Osaka City University Graduate School of Medicine, Osaka, Japan


P15. MRI Features of Disc Degeneration and Vertebral Fracture in Patients with Degenerative Lumbar Paraspinal Muscles Kazushi Takayama, MD, PhD1; Teruo Kita, MD1; Hiroaki Nakamura, MD, PhD2; Fumiaki Kanematsu, MD3; Toshiya Yasunami, MD, PhD3; Akito Yabu1; Kazuya Nishino3; Hideki Sakanaka3; Yoshiki Yamano3 1 Seikeikai Hospital, Osaka, Japan; 2Osaka City University Graduate School of Medicine, Osaka, Japan; 3Osaka, Japan


Tokusihima, Tokushima, Japan; 2Tokushima University, Tokushima, Japan; University of Tokushima, Tokushima, Japan

3

P18. Large Increase of Blood Pressure After Extubation and High Body Mass Index Increase the Risk of Postoperative Spinal Epidural Hematoma Kentaro Yamada, MD1; Yuichiro Abe, MD, PhD2; Shigenobu Satoh, MD3; Hiroaki Nakamura, MD, PhD1 1 Osaka City University Graduate School of Medicine, Osaka, Japan; 2Eniwa Hospital, Eniwa, Japan; 3Eniwa Hospital, Hokkaido, Japan


P19. Computer Assisted Surgery is an Effective Educational Tool for the Training of Orthopaedic Surgery Residents in Pedicle Screw Placement Ahmed Aoude, MD1; Michael H. Weber, MD, PhD2; Peter F. Jarzem, MD1 McGill University, Montreal, QC, Canada; 2McGill University Health Centre, Montreal, QC, Canada

1

FDA Device/Drug Status: Navigation (Approved for this indication)

P20. A Clinical Study of Spinal Injury Caused by Fall Accidents in the Hospital: A Preliminary Report Yusuke Oshita, MD, PhD1; Yohei Ishihara, MD2; Hiroaki Omata, MD, PhD3; Koji Kanzaki, MD4; Hitoshi Mikumo, MD, PhD5; Masanori Nakamura, MD, PhD3 1 Showa University, Yokohama, Japan; 2Rush University Medical Center, Park Ridge, IL, US; 3Yokohama, Japan; 4Showa University Fujigaoka Hospital, Yokohama, Kanagawa, Japan; 5Tokyo, Japan


P21. Risk Factors for Acute Cervical Spinal Cord Injury Associated with Ossification of the Posterior Longitudinal Ligament Eijiro Onishi, MD, PhD

P16. Posterior Cervical Spine Fusion for Cervical OPLL Reduce the Growth of Ossified Lesion Compared to Conservative Treatment

Kobe City Medical Center, Orthopedic Department, Kobe, Japan FDA Device/Drug Status: This abstract does not discuss or include any applicable devices or drugs.

Tomohiro Izumi; Akiyoshi Yamazaki, MD; Tatsuki Mizouchi; Hideki Tashi Spine Center, Orthopedic Department of Niigata Central Hospital, Niigata, Japan FDA Device/Drug Status: This abstract does not discuss or include any applicable devices or drugs.

P22. Long-Term Outcome of Microscopic Lumbar Spinous Process-Splitting Laminectomy Hiroshi Nomura, MD, PhD Hiroshima Red Cross Hospitals & Atomic Bomb Survivors Hospital, Hiroshima, Japan FDA Device/Drug Status: This abstract does not discuss or include any applicable devices or drugs.

29

ELECTRONIC POSTERS P23. Patient Outcomes: The Effect of a Minimally Disruption Muscle Sparring Approach Versus Classic Open Approach in Instrumentated Lumbar Fusion Surgery

P29. A Novel Skull Clamp Positioning System to Obtain Adequate, Quantitative Cervical Sagittal Alignment During Posterior Cervical Surgery

Donald Kucharzyk, DO1; Dushan Budimir, BS2

Nodoka Manabe, MD

Orthopaedic, Pediatric & Spine Institute, Crown Point, IN, US; Downers Grove, IL, US

Gunma Spine Center, Harunaso Hospital, Department of Orthopaedic Surgery, Takasaki, Gunma, Japan



P24. Thoracic Ossification of the Yellow Ligament in Professional Baseball Players: Comparison with Age- and Sex-Matched Control Subjects

P30. Will Intraoperative Contouring of a 3.5mm Diameter Rod Decrease its Fatigue Performance: A Finite Element Study

1

2

Kinshi Kato, MD, PhD Fukushima, Japan FDA Device/Drug Status: This abstract does not discuss or include any applicable devices or drugs.

P25. The Pullout Strength of Pedicle Screws Following Redirection After Lateral Wall Breach or End-Plate Breach

Wenhai Wang, PhD1; Kee D. Kim, MD2; Ripul R. Panchal, DO3; Mark Moldavsky, MS4; Brandon Bucklen, PhD1 1 Globus Medical, Audubon, PA, US; 2UC Davis School of Medicine, Sacramento, CA, US; 3Department of Neurological Surgery, Sacramento, CA, US; 4Audubon, PA, US


Yuichiro Goda, MD1; Kosaku Higashino, MD, PhD2; Toshinori Sakai, MD, PhD1; Yoichiro Takata, MD, PhD2; Koichi Sairyo, MD3

P31. Lumbar Spinal Surgery Outcomes in the Geriatric Population: Does Minimally Invasive Surgery Make a Difference?

1

Tokushima University, Tokushima, Japan; 2Tokushima, Japan; 3University of Tokushima, Tokushima, Japan

Juanita Garces, MD1; Robert Jones, BA2; Edison Valle, MD3; Teresa Arrington, BA4; Olawale Sulaiman, MD5


1 Tulane Medical Center, New Orleans, LA, US; 2New Orleans, LA, US; 3Tulane University, New Orleans, LA, US; 4Harvey, LA, US; 5Ochsner Clinic Foundation, Department of Neurosurgery, New Orleans, LA, US

P26. Treatment Outcomes of Percutaneus Pedicle Screw Fixation for Thoracolumbar Burst Fracture Takeshi Kikuchi; Yasuo Ito, MD Japanese Red Cross Kobe Hospital, Kobe, Japan FDA Device/Drug Status: This abstract does not discuss or include any applicable devices or drugs.

P27. Development of Screening Tool “Spine PainDETECT” for the Neuropathic Pain Due to Lumbosacral Spine Disease: A Multicenter Cross-Sectional Study Takuya Nikaido, MD, PhD1; Miho Sekiguchi, MD2; Shoji Yabuki, MD3; Shinichi Kikuchi, MD, PhD3; Shin-ichi Konno, MD3 1 Fukushima, Japan; 2Fukushima Medical University School of Medicine, Fukushima, Japan; 3Fukushima Medical University, Fukushima, Japan


P28. Risk Factors for Postoperative Subsidence of Anterior Cervical Discectomy and Fusion Shigeharu Fukao, MD Daini Okamoto General Hospital, Uji, Kyoto, Japan FDA Device/Drug Status: This abstract does not discuss or include any applicable devices or drugs.

30


SUBJECT INDEX 3D analysis: P16 3D MRI: 78 Accuracy: 31 Adjacent segment disease: 13, 34, 67, 89, P2 Adolescent idiopathic scoliosis: 57, P14 Adult spinal deformity: 19, 22, 24, 27, 35, 54, 55 Ankylosing spinal hyperostosis: 60 Anterior cervical approach: 15 Anterior cervical discectomy and fusion: 4, P28 Anterior cervical fusion: P12 Anterior decompression with fusion: 20, 21 Anterior fusion: 66 Anterior lumbar interbody fusion: 50 Anterior plate: 1 Anterior surgery: 12 Aryl hydrocarbon receptor: 14 Associated factor: 76 Athetoid cerebral palsy: 63 Axial pain: P6 Bending activities: 24 Bioelectric impedance analysis: 30 Biomarker: 81 Brace treatment: 57 C2-7 SVA: 3 C5 palsy: 6, 21 Cage tilt angle: 69 Cancer: 37 Case control study: P18 Central motor conduction time: P3 Cerebrospinal fluid: 81 Cervical: 12, P1 Cervical alignment: P28 Cervical compressive myelopathy: P3 Cervical fusion: 1 Cervical hybrid: 58 Cervical laminoplasty: 59, 61 Cervical lordotic angle: P14 Cervical myelopathy: 8, 61, 64 Cervical sagittal alignment: P29 Cervical spinal cord: P8 Cervical spine: 2, P11 Cervical spine alignment: 3 Cervical spine injury: 60 Cervical spine surgeries: 5 Cervical spondylotic amyotrophy: P13 Cervical spondylotic myelopathy: 4, 59, 62, 65, P6 Cervical myelopathy: 63 Chemonucleolysis: P10 Clear zone: P4 Clinical outcome: 1, 38, 58, 80 Compound muscle action potentials: P13 Computer assisted surgery: P19 Corrective surgery: 19 Costs: 89 Cost-utility analysis: 84 Craniovertebral junction: 11 Database: 17

Decompression: 70 Definitions: 83 Degenerative change: 29 Degenerative lumbar scoliosis: 70 Degenerative spondylolisthesis: 47, 61, 68, 71, P9 Dioxin: 14 Direct lateral lumbar interbody fusion: 49, 69 Disc degeneration: P15 Duration of symptoms: 48 Dynamic spinal cord compression: 65 Dysphagia: 5 EAT-10: 5 Education: 86, P19 Elderly patients: 10, 23 Elementary school: P17 Endoscopic spinal surgery: 59, 80, P9 End-plate breach: P25 Epidemiology: 85 Expansive laminoplasty: P6 Facet fusion: 68 Failed back syndrome: 45 Fall accident: P20 False localizing sensory levels: 62 Fatigue: P30 Finite element: P30 Finite element method: P8 Foraminal stenosis: P11 Frozen-autograft: 40 Functional impairment: 8 Functional outcome measures: 84 Fusion: 51 Fusion cage: P12 Fusion rate: 73 Gait analysis: 19 Geriatric population: P31 Global health: 85 Health-related QOL: 27 Herniated disc: P10 Hybrid: 51 Imaging: 18 Immature spine: P17 Infection: 16 Influence of age and gender: 3 Insertion torque: P4 Interspinous Fixation: 52 Intramedullary spinal cord tumor: 41 Intraoperative outcomes: 50, 52 Intravertebral cleft: 74 Isthmic spondylolisthesis: 87 July effect: 17 L4 spondylolisthesis: 34 Laminoplasty: 2, 4, 6 Laryngeal nerve injury: 15 Lateral interbody fusion: 72 Lateral Lumbar Interbody Fusion: 18, 50 Lateral mass screw: P4

Lateral wall breach: P25 Liaison treatment: P7 Ligamentum flavum: 53 Loading MRI: 53 Local recurrence: 40 Long-term results: 13, 46 Low back pain: 29, 76, 77, 82 Low-intensity pulsed ultrasound: 32 LTDR: 46 Lumbar: 28 Lumbar disc herniation: 36 Lumbar foraminal stenosis: 78 Lumbar fusion: 89, P2 Lumbar plexus: 18 Lumbar spinal canal stenosis: P22 Lumbar spinal stenosis: 71, 80, 82, P5, P9, P31 Lumbar spine: 51, 70, 83 Lumbar spine dysfunction: P5 Lumbar spine stenosis: 53 Lumbar spondylolysis: P17 Lumbar spondylosis: 30 Lumbosacral spine disease: P27 Massive ossification of longitudinal ligament: 20 Medial facetectomy: P13 Metastasis: 37 Metastatic spinal tumors: P7 Microendoscopic laminotomy: 71, 79 Microscopy: P22 Minimally disruptive: P23 Minimally invasive: P23 Minimally invasive spine stabilization (MISt): P7 Minimally invasive surgery: 66, 72, P22, P26 Minimum invasive fixation: 87 MIS-TLIF: 13 MRI: 25 Multicenter study: 60 Multiple myeloma: 42 Muscle sparring: P23 Neurologic complications: 44 Neuropathic pain: 36, 41, P27 Nonrecurrent inferior laryngeal nerve: 15 Oblique lateral interbody fusion (OLIF): 28, 69 Oblique lateral lumbar interbody fusion: 49 Occipitocervical fixation: P1 Occult infection: 45 ODI: 22 OLF: 7 OPLL: 7, P16 Ossification of the yellow ligament: P24 Osteoarthritis: 56 Osteoporosis: 75, 77 Osteoporotic vertebral fracture: 25, 74 Outcome: 23 Outcomes of MIS surgery: P31 31

SUBJECT INDEX PainDETECT: P27 Paraspinal muscle: P15 Paravertebral muscles: 26, 29 Patient-reported outcome: 43 Pedicle screw: 12, 31, 86, P25 Percutaneous pedicle screw: 47, 68, P26 Perioperative complication: 49 Plate system: 73 Posterior cervical spine fusion: P16 Posterior cervical surgery: P29 Posterior decompression with fusion: 20 Posterior fixation: 63 Posterior fusion: P11 Posterior lumbar interbody fusion (PLIF): 23, 32, 67, 73 Postoperative: 24 Postoperative pain: 41 Postoperative spinal epidural hematoma: P18 Pregnancy: 88 Primary spinal tumors: 43 Professional baseball players: P24 Prognosis: 21 Pseudarthrosis: 16, 25 QOL: 55 Questionnaire: 65 Radiculopathy: 48 RCT: 52 Recombinant human matrix metalloproteinase-7: P10 Renal cell carcinoma: 39 Reoperation: 44, 83 Retrospective radiographic study: 56 Revision surgery: 45 Rheumatoid arthritis: 76 Risk factor: 33, 82, P2, P18 Robotic-assisted surgery: 31 Rod contouring: P30 Rod fracture: 35 Rotation correction: 57 Sacrum: 87 Sagittal alignment: P1 Sagittal balance: 26, 64 Sagittal imbalance: 2 Sagittal malalignment: 22 Sagittal spinal alignment: P14 Sagittal vertical axis: 79 Sarcopenia: 30 Screw loosening: 47 Serotonin noradrenaline reuptake inhibitors: 36 Skull clamp positioning system: P29 Smoking: 14 Spinal cord injury: P20 Spinal cord monitoring: 6 Spinal cord segments: P8 Spinal fusion: 32 Spinal metastasis: 39 Spinal reconstruction: 38 Spinal sagittal alignment: 79 Spinal surgery: 33 32

Spine: 37, 86 Spine fusion: P5 Spine trauma: 85 Spinopelvic alignment: 56, 67 Spinopelvic parameter: 27 Spinopelvic sagittal parameter: 54 Spondylolisthesis: 28, 66 Stand-alone: P12 Subsidence: P28 Surgery: 55 Surgery or conservative treatment: 78 Surgical approach: 64 Surgical management: 54 Surgical resection: 39 Surgical site infection: 17 Sway of gravity center: 8 Teriparatide: 77 Thoracic myelopathy: 7 Thoracic spine: P24 Thoracolumbar burst fracture: P26 Thoracolumbar corpectomy: 84 Total disc replacement: 58, 88 Total en bloc spondylectomy: 38, 40, 43 Training: P19 Transcranial magnetic stimulation: P3 Transforaminal lumbar interbody fusion (TLIF): 48, 72 Type II odontoid fracture: 10 Upper cervical spine injury: 10 Vancomycin: 16 Vascular anomalies: 11 Venous thromboembolism: 33 Vertebral artery: 11 Vertebral fracture: 26, 42, 75, P15, P20 Vertebral osteomyelitis: 44

AUTHOR INDEX Abe, Yuichiro: 15, 65, 78, P18 Abjornson, Celeste: 45 Achey, Rebecca L.: 44 Aleem, Ilyas: 85 Alentado, Vincent J.: 89, P2 Aoude, Ahmed: P19 Aramomi, Masaaki: 5, 12 Arima, Hideyuki: 3, 19, 22, 24, 27, 35, 41, 54, 56 Arnold, Paul M.: 50, 52 Arrington, Teresa: 72, 84, P31 Asai, Yoshiki: 26 Asano, Futoshi: 55 Ashtekar, Amruta: 37 Baba, Ichiro: 31 Banno, Tomohiro: 3, 19, 22, 24, 27, 35, 41, 54, 56 Bejin, Brieta: 50, 52 Bellary, Sharath S.: 14, 16, 37 Benzel, Edward C.: 9, 42, 44, 86, 89, P2 Bhandari, Mohit: 85 Blumenthal, Scott L.: 51, 58, 83, 88, P12 Bucklen, Brandon: P30 Budimir, Dushan: P23 Bui, Cuong J.: 84 Burneikiene, Sigita: 48 Callanan, Tucker C.: 45 Cammisa, Frank P.: 18, 45 Chazen, Joseph L.: 18 Chikawa, Takashi: P4 Chikuda, Hirotaka: 17, 81, P1 Chugh, Arunit J.: 64 de Moura, Alexandre B.: 50, 52 DeMarco, Dylan: 85 Demura, Satoru: 33, 38, 39, 40, 43 DenHaese, Ryan P.: 50, 52 Derakhshan, Adeeb: 44 Dhillon, Mandeep: 85 Dohzono, Sho: 8, 61, 71, 74, 79 Drew, Brian M.: 85 Elliott, Charles: 9 Eubanks, Jason D.: 64 Evaniew, Nathan: 85 Featherall, Joseph: 42 Ferry, Chris: 50, 52 Foote, Clary J.: 85 Fujimoto, Kazuhiro: 21, 77, P3 Fujishiro, Takashi: 31 Fujiwara, Kenta: 31 Fukao, Shigeharu: P28 Fukumoto, Shingo: 31 Funaba, Masahiro: 21, 77, P3 Furuya, Takeo: 5, 12 Garces, Juanita: 72, 84, P31 Ghodasra, Jason H.: 14, 37 Ghosh, Anjan: 14, 16, 37 Goda, Yuichiro: P17, P25

Guyer, Richard D.: 51, 58, 83, 88, P12 Hai, Yong: 46 Handa, Junichi: 36 Happ, Christopher M.: P12 Haro, Hirotaka: P10 Hasegawa, Tomohiko: 3, 19, 22, 24, 27, 35, 41, 54, 56 Hasegawa, Toru: P7 Hashizume, Hiroshi: 26, 29, 59, 80, 82, P9 Hashmi, Sohaib: 14, 37 Hayashi, Kazunori: 4, 8, 23, 61, 87, P14 Healy, Andrew T.: 86, 89, P2 Hida, Tetsuro: 30 Higashino, Kosaku: P17, P25 Hiramatsu, Takeshi: 6 Hori, Yusuke: 28 Hoshino, Masatoshi: 4, 8, 25, 28, 74, 75, 79, 87, P14 Hosogane, Naobumi: 54 Hsu, Erin L.: 14, 16, 37 Hsu, Wellington K.: 14, 16, 37 Hur, Jung-Woo: 49 Igarashi, Takashi: 40, 43 Iida, Takahiro: 54 Iida, Yasuaki: 13 Imagama, Shiro: 30 Imajo, Yasuaki: 21, 62, 77, P3, P8 Inami, Satoshi: 55 Ishihara, Yohei: P20 Ishikawa, Tetsuhiro: 12 Ishimoto, Yuyu: 29, P5 Ito, Yasuo: P26 Iwahashi, Hiroki: 26, 29 Iwasaki, Hiroshi: 26, 59, 80, 82, P9 Iwasaki, Motoki: 67, 73 Izumi, Tomohiro: 60, P11, P16 Jain, Akshay: 14 Jarzem, Peter F.: P19 Jones, Robert: 84, P31 Kagotani, Ryohei: 29 Kamei, Naouke: 6 Kanchiku, Tsukasa: 21, 62, 77, P3, P8 Kanematsu, Fumiaki: P15 Kannan, Abhishek: 14, 16, 37 Kanzaki, Koji: P20 Kashima, Masahiro: P4 Kato, Kinshi: 63 Kato, Kinshi: P24 Kato, Minori: 2, 23, 34, 70, 75 Kato, Satoshi: 33, 38, 39, 40, 43 Kato, So: 81 Kawakami, Mamoru: P5 Kikuchi, Shinichi: P27 Kikuchi, Takeshi: P26 Kim, Jin-Sung: 69 Kim, Kee D.: 50, 52, P30 Kita, Teruo: P15

Kitagawa, Tomoko: P5 Kobayashi, Sho: 3, 19, 22, 24, 27, 35, 41, 54, 56 Koda, Masao: 5, 12 Konishi, Sadahiko: 23 Konno, Shin-ichi: 36, 63, P27 Kshettry, Varun: 86 Kucharzyk, Donald: P23 Lebl, Darren R.: 18, 45 Lieberman, Isador H.: 42 Lubelski, Daniel: 9, 42, 44, 89, P2 Maeno, Takafumi: 67, 73 Manabe, Nodoka: P29 Mandai, Koji: 28 Mannoji, Chikato: 5, 12 Margetis, Konstantinos: 42 Martin, Kimberly: 50, 52 Martineck, Sarah B.: 50, 52 Mason, Alexander: 48 Mathkour, Mansour: 72 Matsubayashi, Yoshitaka: P1 Matsumoto, Morio: 54 Matsumoto, Tomiya: 67, 71, 73 Matsumoto, Yoshihisa: 53 Matsumura, Akira: 2, 23, 34, 54, 70, 75 Matsuoka, Toshiko: P5 Matsuyama, Yukihiro: 3, 19, 22, 24, 27, 35, 41, 54, 56 Mehta, Vikram A.: 9, 42, 44 Mendoza, Marco: 14, 16, 37 Mikumo, Hitoshi: P20 Miller, Jacob: 9, 42, 44, 89 Minamide, Akihito: 26, 29, 59, 80, 82, P9 Misawa, Haruo: 7, 66 Mitchell, Sean M.: 14, 16 Mizouchi, Tatsuki: 60, P11, P16 Mochida, Joji: 10 Moldavsky, Mark: P30 Moore, Camille: 50, 52 Moridaira, Hiroshi: 55 Morishita, Shoko: P5 Mroz, Thomas E.: 9, 42, 44, 86, 89, P2 Mundi, Raman: 85 Murakami, Hideki: 33, 38, 39, 40, 43 Murakami, Masazumi E.: 5 Muraki, Shigeyuki: 26, 29 Nagamachi, Akihiro: 47, 68, P13 Nagata, Keiji: 29, P5 Nakagawa, Yukihiro: 26, 29, 59, 80, 82, P9 Nakahara, Shinnosuke: 7, 66 Nakai, Keiichi: 3, 19, 22, 24, 41 Nakamura, Hiroaki: 2, 4, 8, 23, 25, 28, 34, 61, 70, 71, 74, 75, 76, 78, 79, 87, P14, P15, P18 Nakamura, Masanori: P20 Nakamura, Masaru: P4 Nakanishi, Kazuo: P7 Nakanishi, Kazuyoshi: 6 Nakano, Atsushi: 31 33

AUTHOR INDEX Nakano, Shunji: P4 Nakao, Shin-ichi: 59, 80, 82, P9 Nakashima, Hiroaki: 32 Nakaya, Yoshiharu: 31 Nakayama, Kentaro: 55 Namikawa, Takashi: 2, 23, 34, 70, 75 Nelson, Ewell L.: 48 Nelson, John T.: 14, 37 Neo, Masashi: 31 Nickoli, Michael S.: 14, 37 Nikaido, Takuya: 63, P27 Nishida, Norihiro: 21, 62, 77, P3, P8 Nishino, Kazuya: P15 Nohara, Yutaka: 55 Nomura, Hiroshi: P22 Ochi, Mitsuo: 6 Oda, Takenori: 73 Oe, Shin: 3, 19, 22, 24, 27, 35, 41 Ogata, Toru: 81 Ogawa, Yuto: P6 Ohnmeiss, Donna D.: 1, 51, 58, 83, 88, P12 Ohya, Junichi: 17, 81 Ohyama, Shoichiro: 2, 34, 70 Oka, Hiroyuki: 26, 29, 59, 82 Okada, Motohiro: 59, 80, 82, P9 Okoli, Michael: 37 Okuda, Shinya: 67, 73 Omata, Hiroaki: P20 Onishi, Eijiro: P21 Orr, R. Douglas: 89, P2 Oshima, Yasushi: 17, 81, P1 Oshita, Yusuke: P20 Otero-Lopez, Ernesto R.: 51 Otsuka, Seiji: 53 Panchal, Ripul R.: P30 Park, Christian: 14, 16 Passias, Peter G.: 50, 52 Quinn, John C.: 18 Rajpal, Sharad: 48 Rikita, Takanori: 6 Rogers, Roger W.: 1, 58 Ryu, Kyeong-Sik: 49 Sairyo, Koichi: 47, 68, P4, P13, P17, P25 Sakai, Daisuke: 10 Sakai, Toshinori: P17, P25 Sakanaka, Hideki: P15 Sancheti, Parag: 85 Sasaki, Takahide: 26, 29 Satoh, Shigenobu: 15, 65, 78, P18 Scullen, Tyler: 84 Sekiguchi, Miho: 36, P27 Shariff, Sohail: 85 Shetty, Vijay: 85 Shimizu, Takachika: P1 Shinohara, Kensuke: 57 Shinto, Kazunori: 26 Singh, Gurmit: 16 Sonn, Kevin A.: 14, 16, 37 Steinmetz, Michael P.: 89, P2 Stock, Stuart R.: 14, 16, 37 34

Strenge, K. Brandon: 50, 52 Sugiura, Kosuke: 47, 68, P13 Sulaiman, Olawale: 72, 84, P31 Sumiyoshi, Norihiko: 6 Sundar, Swetha: 86, 89 Suzuki, Akinobu: 4, 8, 61, 71, 74, 75, 76, 79, 87, P14 Suzuki, Hidenori: 21, 62, 77, P3, P8 Suzuki, Nobuyuki: 53 Taguchi, Toshihiko: 21, 62, 77, P3, P8 Takahashi, Hiroshi: 13 Takahashi, Shinji: 8, 25, 61, 74, 76, 87 Takata, Yoichiro: P17, P25 Takayama, Kazushi: 25, 75, P15 Takazawa, Atsushi: 6 Takeuchi, Daisaku: 55 Takeuchi, Kazuhiro: 7, 66 Tamai, Koji: 4, 8, 87, P14 Tamaki, Yasuaki: 47, 68, P13 Tanaka, Masato: 57 Tanaka, Nobuhiro: 6 Taneichi, Hiroshi: 55 Tashi, Hideki: 60, P11, P16 Teraguchi, Masatoshi: 26, 29 Terai, Hidetomi: 4, 8, 61, 71, 74, 75, 79, 87, P14 Tezuka, Fumitake: P17 Togawa, Daisuke: 3, 19, 22, 24, 27, 35, 41, 54, 56 Toki, Shunichi: P4 Toyoda, Hiromitsu: 4, 8, 25, 61, 71, 74, 75, 79, 87, P14 Tsuchiya, Hiroyuki: 33, 38, 39, 40, 43 Tsuji, Osahiko: P6 Tsujio, Tadao: 28 Tsutsui, Shunji: 26, 59, 80, 82, P9 Ujigo, Satoshi: 6 Ushirozako, Hiroki: 56 Valle, Edison: 84, P31 Villavicencio, Alan T.: 48 Wada, Akihito: 13 Wakao, Norimitsu: 11 Wang, Wenhai: P30 Watanabe, Kazuyuki: 63 Watanabe, Masahiko: 10 Weber, Michael H.: P19 Weinberg, Douglas S.: 64 Xiao, Roy: 42 Yabu, Akito: P15 Yabuki, Shoji: 63, P27 Yamada, Hiroshi: 26, 29, 59, 80, 82, P9 Yamada, Kentaro: 15, 65, 76, 78, P18 Yamada, Tomohiro: 3, 19, 22, 24, 41, 56 Yamane, Kentaro: 57 Yamano, Yoshiki: P15 Yamasaki, Ryoji: 67, 73 Yamashita, Tomoya: 67, 73 Yamato, Yu: 3, 19, 22, 24, 27, 35, 41, 54, 56 Yamazaki, Akiyoshi: 60, P11, P16 Yamazaki, Masashi: 12 Yasuda, Hiroyuki: 25, 74, 76

Yasuda, Tatsuya: 3, 19, 22, 24, 27, 35, 41, 54, 56 Yasunami, Toshiya: P15 Yokoyama, Yuichiro: 13 Yoon, Byung Jo Victor: 45 Yoshida, Munehito: 26, 29, 59, 80, 82, P9 Yoshida, Yuichiro: 21, 62, 77, P3, P8 Yoshii, Toshitaka: 20 Yoshimura, Noriko: 26, 29 Yoshioka, Katsuhito: 33, 38, 39, 40, 43 Yukawa, Yasutsugu: 32 Yun, Chawon: 14, 16, 37 Yun, Jonghwa: 14 Zigler, Jack E.: 1, 51, 58, 83, 88, P12

TECHNICAL EXHIBITION Visit the Technical Exhibition to complement the professional meeting and clinical sessions. Evaluate first-hand the latest developments in equipment, supplies and services that are relevant to spine care. Technical Exhibition hours: Monday, July 27. . . . . . . . . . . . . 6:45 a.m.–12:00 p.m. Tuesday, July 28. . . . . . . . . . . . . 6:45 a.m.–12:00 p.m. Wednesday, July 29 . . . . . . . . . 6:45 a.m.–12:00 p.m. Thursday, July 30 . . . . . . . . . . . . . . . . 6:45–10:00 a.m. Breakfast and beverage breaks will be offered in the Technical Exhibition area daily.

K2M, Inc.

www.k2m.com K2M Group Holdings, Inc. is a global medical device company focused on designing, developing and commercializing innovative complex spine and minimally invasive spine technologies and techniques used by spine surgeons to treat some of the most difficult and challenging spinal pathologies. K2M has leveraged these core competencies to bring to market an increasing number of products for patients suffering from degenerative spinal conditions. These technologies and techniques, in combination with a robust product pipeline, enables the company to favorably compete in the global spinal surgery market.

L&D Spine L&D Spine is an up and coming Spine Implant Company. L&D is dedicated to the development of the latest advancements in Minimally Invasive Spinal Fusion Technology across the market. The extensive experience within our team allows L&D to develop high quality products that will exceed the expectations of our surgeon customers and more importantly improve the quality of life for our patients.

Precision Spine, Inc.

www.precisionspineinc.com Precision Spine offers a comprehensive, innovative, cost effective product portfolio that provides surgeons with the intraoperative options and flexibility demanded by today’s challenging spinal procedures. The company mission is to meet the needs of patients, surgeons and healthcare providers, while positively affecting patient recovery and overall surgical outcomes.

Showa Ika Kohgyo Co., Ltd. www.showaika.com

Showa Ika is Japan’s leading spinal device producer creating innovative, safe, easy-to-use instruments and implants for use in spine surgery. Our products are globally recognized by leading physicians for their outstanding quality and clinical efficacy.

SI-BONE, Inc.

www.si-bone.com SI-BONE, Inc. is the leading sacroiliac (SI) joint medical device company dedicated to the development of tools for diagnosing and treating patients with low back issues related to SI joint disorders. The company is manufacturing and marketing a minimally invasive surgical (MIS) technique for the treatment of SI joint pathology.

TeDan Surgical Innovations www.tedansurgical.com

TeDan Surgical Innovations (TSI) designs and manufactures special surgical products for use in orthopedic, neuro, thoracic and spine surgeries. TSI offers cervical and lumbar retractor systems for ACDF and minimally invasive lumbar fusion procedures. All of our retractor systems have patented ergonomically designed blade locking mechanism which simplifies their use in surgery.

Life Instrument Corporation www.lifeinstruments.com

Life Instrument Corporation is dedicated to serving neurosurgeons and orthopedic surgeons with the highest quality surgical instruments. Over the years, spine surgery has advanced with new procedures and approaches to the spine. Life Instrument Corporation is committed to meet the needs of spine surgeons for these new surgical techniques. 35

DISCLOSURE INDEX Financial Conflict of Interest Disclosure Policy

NASS recognizes that professional relationships with industry are essential for development of new spine technologies and medical advancement. According to the Committee on Ethics and Professionalism, which authored the disclosure policy, “the goal is to create an environment of scientific validity, in which learners can accurately judge whether the information they receive is objective and unbiased, and to be sure that our members are current and forthright in their dealings with one another and with their colleagues and patients.” The establishment of uniform disclosure requirements frees individuals from having to decide which relationships might influence his or her decision-making and which are irrelevant; transparent disclosure allows the audience to participate in the interpretation of the significance. All authors and faculty speaking at Spine Across the Sea have been required to provide complete disclosure of all potential conflicts of interest.

Commercial Support Disclosure

As a sponsor accredited by the ACCME, the North American Spine Society must ensure balance, independence, objectivity and scientific rigor in all its sponsored activities. All individuals participating in a NASS-sponsored CME activity are expected to disclose to the audience all financial interests or other relationships with any commercial interest that occurred within the prior calendar year. Financial interests or other relationships may include: grants or research support, employee, consultant, major stockholder, member of the speaker’s bureau, etc. Disclosure information will be made available visually on a PowerPoint® slide before each presentation and in this Final Program. It should also be noted that audience members who volunteer questions or statements during symposia, focused discussions, or other educational events should disclose their own conflicts to the assembled group before proceeding with their comments.

Program Committee Statement on Resolution of Conflict of Interest in Presentations

The intent of this disclosure is to ensure that all conflicts of interest, if any, have been identified and have been resolved prior to the speaker’s presentation. By doing so, the North American Spine Society has determined that the speaker’s or author’s interests or relationships have not influenced the presentation with regard to exposition or conclusion; nor does the Society view the existence of these interests or commitments as necessarily implying bias or decreasing the value of the presentation.

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FDA Disclosure

If a device or drug requiring FDA approval is identified as an important component of a presentation, the author must indicate the FDA status of those devices or drugs as Approved, Investigational or Not Approved for distribution within the United States. The Final Program includes all FDA status information. Certain medical devices and drugs identified at Spine Across the Sea may have FDA clearance for use for specific purposes only, or in restricted research settings. The FDA has stated it is the responsibility of the physician to determine the FDA status of each drug or device he or she wishes to use in clinical practice and to use these products in compliance with applicable law. These disclosures are current as of April 14, 2015. Disclosure information will also be available on the screen in the session room before each speaker’s presentation.

Range Key

Level A. $100 to $1000 Level B. $1,001 to $10,000 Level C. $10,001 to $25,000 Level D. $25,001 to $50,000 Level E. $50,001 to $100,000 Level F. $100,001 to $500,000 Level G. $500,001 to $1M Level H. $1,000,001 to $2.5M Level I. Greater than $2.5M

Abjornson, Celeste: Consulting: Woven Orthopaedics (C), Centinel Spine (E); Speaking and/or teaching arrangements: Orthobond (F, Paid directly to institution/employer); Research Support (Investigator Salary): Orthobond (B, Paid directly to institution/employer), NuTech Spine (F, Paid directly to institution/employer), Vertical Spine (D, Paid directly to institution/employer), Bacterin (F, Paid directly to institution/employer), NovaBone (E, Paid directly to institution/employer); Research Support (Staff and/or Materials): Orthobond (C, Paid directly to institution/employer); Fellowship Support: AO North America (E, Paid directly to institution/employer). Araghi, Ali: Royalties: Globus (B); Stock Ownership: VTI (