SAS09 London Program

8:00 AM to 9:00 AM  “The Annulus:  Damage and Repair”

Moderator:  Henry Halm, MD & PhD

Goal:  To understand the biomechanics, biology and clinical implications of annular deficiencies.  Novel surgical strategies to address this clinical problem will be highlighted.

• Clinical problems associated with anular weakness:  David Wong, MD  
• Biology of the annulus and implications for healing:  Jill Urban, PhD
• Challenge of annulus repair: Hans-Joachim Wilke, PhD
• Surgical strategies for annular repair:  Carl Lauryssen, MD
• Discussion

9:15 AM to 10:15 AM  “Case Debate:  Lumbar Degenerative Scoliosis” 

Moderator:  Stephen Hochschuler, MD

Goal: Degenerative lumbar scoliosis is a common spinal condition that poses significant treatment challenges. Varied treatment approaches to address this problem will be debated.

• Anatomy of the condition: Wolfgang Rauschning, MD, PhD
• Multiple-level MIS decompression only: Choll Kim, MD, PhD
• Open decompression and fusion: Rick Delamarter, MD 
• Interspinous process spacers: Doug Wardlaw MB, ChB, ChM, FRCSEd
• Dynamic posterior stabilization: James Yue, MD
• Multi-level XLIF: Luiz Pimenta, MD
• Multi-level TDR: Rudolph Bertagnoli, MD
• Discussion

10:30 AM to 11:30 AM: “ Study Design Methodologies & Techniques”

Moderator: Lisa Ferrara, PhD

Goal:  Provide ”how to” guidelines for study design methodologies & experimental techniques including essential statistical considerations for biomechanical studies (cadaver model) and in vivo studies (animal model).

• Biomechanical Studies using a Cadaveric Model:  Avinash Patwardhan, PhD
• Load control, displacement control & hybrid test protocols – matching the protocol to the goals of the study; experimental test set-ups (single vs. Multi-segment, preload); what to measure and how – standard techniques and novel approaches.
• In Vivo Studies using an Animal Model:  Bryan Cunningham, MSc
• How to select the ”best” animal model for the goals of the study?  Pros and cons of different models; what to measure and how – experimental techniques for outcome assessments.
• Statistical Methods for Study Design and Data Analysis:  Donna Ohnmeiss, PhD
• Different study designs; sample size estimation; multiple comparisons
• Discussion/Questions

11:30 AM to Noon:  SAS Business Meeting

Noon: Physician and Patient Access to New Technologies – the Need for Advocacy

Noon to 1:00 PM Lunch

1:00 PM to 2:30 PM: “Master Techniques in Minimally Invasive Spine Surgery”

Moderator:  Choll Kim, MD, PhD

Goal: The symposium will highlight surgical techniques, tips, and pearls of MIS state-of-the-art surgical techniques.  The goal is to provide key insights that allow for successful application of MIS technology.

• Anatomy of Minimally Invasive Spine Surgery:  Wolfgang Rauschning, MD, PhD
• MIS Radiographic Anatomy:  Neel Anand, MD
• MIS Decompression: David Wong, MD
• MIS TLIF for Spondylolisthesis:  Kevin Foley, MD  
• XLIF for Scoliosis: William D. Smith, MD
• MIS for tumor, infection, and trauma:  Larry Khoo, MD
• Case Presentation/Discussion:  Choll Kim , MD, PhD
• Panel: David Wong, MD; Kevin Foley, MD; I. Lieberman, MD, MBA, FRCSC;  M. Knight MD, FRCS, MBBS

2:45 to 4:00 PM:  MIS I:

MIS OUTCOMES:
Moderator:  Sebastian Ruetten, MD, PhD

2:45 p.m. - 2:50 p.m.
Abstract: 114
Conventional Posterior Lumbar Interbody Fusion versus Mini-open Posterior
Lumbar Interbody Fusion Using the New Percutaneously Inserted Spinal
Transpedicular Screwing System
H.S. Kim1, S.K. Park1, H. Joy1, I.H. Park1, J.K. Ryu1, K.H. Park2, C.I. Ju3, S.W. Kim3, S.M. Lee3, H. Shin3
1Mokpo Hankook Hospital, Department of Neurosurgery, Mokpo, Korea, Republic of, 2Korea Hospital,
Department of Orthopedic Surgery, Jeonju, Korea, Republic of, 3College of Medicine, Chosun University,
Department of Neurosurgery, Kwangju, Korea, Republic of

2:51 p.m. - 2:56 p.m.
Abstract: 142
Tubular Microsurgery for Lumbar Discectomies and Laminectomies in Obese
Patients: Operative Results and Outcome
A. Tomasino1, K. Parikh1, J. Steinberger1, J. Knopman1, H. Gebhard1, J. Boockvar1, R. Härtl1
1Weill Cornell Medical College of Cornell University, New York-Presbyterian Hospital, Department of
Neurological Surgery, New York, New York United States

2:57 p.m. - 3:02 p.m.
Abstract: 291
A Comparison of Traditional and Minimally Invasive Lumbar Fusion in
Octagenarians
W.B. Rodgers1,2,3,4, C.S. Cox1,2,3,4, E.J. Gerber1,2,3,4
1Spine Midwest, Jefferson City, MO United States, 2NuVasive, San Diego, CA United States, 3Exactech, Gainesville,FL
United States, 4Trans1, Wilmington, DE United States

3:03 p.m. - 3:08 p.m.
Abstract: 361
Lifestyle Outcomes Analysis after Minimally Invasive Microscopic Decompression
for Lumbar Spinal Stenosis
P. Pazmino1, B. Cohen2, C. Lauryssen3, A. Farin3, R. Gordon2
1Beverly Spine, Orthopaedic Surgery, Beverly Hills, CA United States, 2Beverly Spine Institute, Spine, Beverly
Hills, CA United States, 3Tower Orthopaedic and Neurological Institute, Neurological Spine, Beverly Hills, CA United
States

3:09 p.m. - 3:19 p.m. Discussion

LATERAL APPROACHES
Moderators:  Isador Lieberman, MD, MBA, FRCSC, Chong Suh Lee, MD

3:20 p.m. - 3:25 p.m.
Abstract: 380
Changes in the Microhemodynamics of Nerve Root Retraction in Patients with
Lumbar Spinal Canal Stenosis in Minimally Invasive Surgery
A. Dezawa1
1Teikyo Universty Mizonokuchi Hospital, Kawasaki, Japan

3:26 p.m. - 3:31 p.m.
Abstract: 341
The Location of Intra-psoas Nerve Roots when Performing Extreme Lateral Lumbar
Interbody Fusion (XLIF): An Anatomical Study
D.K. Park1, M. Lee2, E.L. Lin1, H.S. An1, F.M. Phillips1
1Rush University, Orthopedics, Chicago, IL United States, 2University of Washington, Orthopedics, Seattle, WA
United States

3:32 p.m. - 3:37 p.m.
Abstract: 227
Radiographic Outcomes of the Dlif/Xlif Technique In Comparison to Other Fusion Techniques for the Treatment of Degenerative Lumbar Scoliosis
C. Kim1, N. Patel2, G. Regev2, W. Taylor12 Y.-P. Lee2, S. Garfin2, 1MISI at Alvarado Hospital, San Diego, CA, United States, 2University of California San Diego, Orthopaedics, San Diego, CA, United States

3:38 p.m. - 3:43 p.m.
Abstract: 579
Complications in eXtreme Lateral Interbody Fusion: One Surgeon´s Experience with
566 Cases and 1550 Levels
W.D. Smith1, M. Seiff2, M. Fogarty3, G. Chrisitan3, S. Serrano3, K. Malone3
1University Medical Center, Neurosurgery, Las Vegas, NV United States, 2The Nevada Neurosciences Institute,
Neurosurgery, Las Vegas, NV United States, 3The NNI Research Foundation, Research, Las Vegas, NV United
States

3:44 p.m. - 3:54 p.m. Discussion

4:00 to 5:00 PM: ORAL POSTERS: FIRST SESSION (3 min.each/5 min. discussion)

CERVICAL I:

Moderator: Rick Delamarter, MD

4:00 p.m. - 4:03 p.m. Discussion: 4:03 p.m. - 4:08 p.m.
Abstract: 58
A Prospective Randomized Comparison of Cervical Total Disc Replacement and Anterior Cervical Fusion
S.L. Blumenthal1, R.D. Guyer1, J.E. Zigler1, M. Rodriguez2,A.M. Atanasov2, D.D. Ohnmeiss2
1Texas Back Institute, Plano, TX, United States, 2Texas Back Institute Research Foundation, Plano, TX, United
States

4:08 p.m. - 4:11 p.m. Discussion: 4:11 p.m. - 4:16 p.m.
Abstract: 229
Bi-level Cervical Arthroplasty Outcomes: Compare to Single Level Arthroplasty
K.S. Cho1, J.K. Park1, D.S. Kim1, P.W. Huh1, D.S. Yoo1, C.K. Park2
1Uijeongbu St. Mary's Hosp. The Catholic Univ. of Korea, Neurosurgery, Seoul, Korea, Republic of, 2The
Catholic University of Korea, Kangnam St. Mary's Hosp, Neurosurgery, Seoul, Korea, Republic of

4:16 p.m. - 4:19 p.m. Discussion: 4:19 p.m. - 4:24 p.m.
Abstract: 145
A Clinical Comparison of One and Two-level Cervical Disc Arthroplasty verse One
and Two-level Anterior Cervical Decompression and Fusion: Single Center Results
from a US IDE Prospective Randomized Study
J.J. Yue1, J.M. Morreale1
1Yale University School of Medicine, Orthopaedic Surgery, New Haven, CT, United States

4:24 p.m. - 4:27 p.m. Discussion: 4:27 p.m. - 4:32 p.m.
Abstract: 351
Clinical and Radiographic Analysis of Cervical Arthroplasty versus Arthrodesis in
Korea University Hospital
J.K. Suh1, B.J. Kim1, H.S. Tae1, T.H. Cho1
1Korean University Hospital, Neurosurgery, Seoul, Korea, Republic of

4:32 p.m. - 4:35 p.m. Discussion: 4:35 p.m. - 4:40 p.m.
Abstract: 444
Cervical Hybrid Artrhoplasty: Lifestyles Outcomes Analysis
P. Pazmino1, C. Lauryssen2, T. Lanman3, A. Farin2, S. Murphy3, O. Qaqi3
1Beverly Spine Institute, Spine, Beverly Hills, CA, United States, 2Tower Orthopaedic and Neurological Institute,
Neurological Spine, Beverly Hills, CA, United States, 3Spine.Md, Spine, Beverly Hills, CA, United States

4:40 p.m. - 4:43 p.m. Discussion: 4:43 p.m. - 4:48 p.m.
Abstract: 575
Clinical Motion in the Cervical Spine with the SECURE-C Cervical Artificial Disc
J.M. Marzluff1, J. Highsmith1, C. Tomaras2, T. Morrison2, I. Volcan3, A. Goodrich4, P. Asdourian5, J.
McConnell6
1Neurosurgery, Charleston, United States, 2Peachtree Neurosurgery, Atlanta, GA, United States, 3Neurosurgery,
Augusta,  GA, United States, 4Orthopedic Surgery, Augusta, GA,United States, 5Orthopedic Surgery, Baltimore, MD,
United States, 6OAA Orthopedic Specialists, Allentown, PA, United States

4:48 p.m. - 4:51 p.m. Discussion: 4:51 p.m. - 4:56 p.m.
Abstract: 272
CerviCore® Intervertebral Disc Replacement vs. Fusion for Cervical Nerve Root
Compression: Clinical Outcomes from a Prospective, Randomized, Multicenter Trial
J.J. Abitbol1, J.A.  Youssef2,  N.G. Baldwin3, N.M. Wright4
1California Spine, San Diego, CA, United States, 2Durango orthopedic Associates/Spine Colorado, Durango, CO, United States, 3Neurological Associates, LLP, Lubbock, TX, United States, 4Washington Univ School of Med,
Neurological and Orthopedic Surgery, St. Louis, MO, United States

LUMBAR I:
Moderator:  J.J. Abitbol, MD

4:00 p.m. - 4:03 p.m. Discussion 4:03 p.m. - 4:08 p.m.
Abstract 596
Multiple-level Lumbar ADR with Prodisc-L: A Clinical and Radiographic Analysis of Sagittal Motion Preservation at 2-6 years
Rasouli1, R. Delamarter1, N. Ashraf1, B.Strenge1, L.E.A. Kanim1, H.W. Bae1, M. Kropf1
1The Spine Institute Santa Monica, Santa Monica, CA, USA

4:08 p.m. - 4:11 p.m. Discussion: 4:11 p.m. - 4:16 p.m.
Abstract: 53
Relationship between Endplate Morphology and Clinical Outcome of Single-level
Lumbar Disc Arthroplasty
S.L. Blumenthal1, R..D. Guyer1, J.E. Zigler1, P.B. Auer2, D.D. Ohnmeiss2
1Texas Back Institute, Plano, TX, United States, 2Texas Back Institute Research Foundation, Plano, TX, United
States

4:16 p.m. - 4:19 p.m. Discussion: 4:19 p.m. - 4:24 p.m.
Abstract: 652
Economic Outcomes in a Worker's Compensation Cohort After Single-Level Lumbar
Disc Arthroplasty vs. Anterior Lumbar Interbody Fusion
M.F. Gornet1, D.W. Polly2, J.H. Peloza3, J.K. Burkus4
1The Orthopedic Center of St. Louis, MO, Spine Research Center, St. Louis, MO, United States, 2University of
Minnesota, Dept. of Orthopaedic Surgery, Minneapolis, MN, United States, 3Center for Spine Care, Dallas, TX, United
States, 4The Hughston Clinic, Columbus, GA, United States

4:24 p.m. - 4:27 p.m. Discussion: 4:27 p.m. - 4:32 p.m.
Abstract: 615
The Effect of Age on Clinical Outcomes Following Lumbar Total Disc Replacement
after a Minimum 1-year Follow-up
M. Scott-Young1, N. Cleaver2, C. Magno2, D. Nielsen2
1Bond University, Faculty of Health Sciences and Medicine, Gold Coast, Australia, 2Pacific Private Clinic,
Southport, Australia

4:32 p.m. - 4:35 p.m. Discussion: 4:35 p.m. - 4:38 p.m.
Abstract: 461
Retroperitoneal Access from the Right Side in Lower Lumbar Discs for TDR
Implantation: A Study about 210 Cases
T.P. Marnay1, G. Negre1, G. Geneste1, N. Larive1
1Clinique du Parc, Spine Department, Castelnau le Lez, France

4:38 p.m. - 4:41 p.m. Discussion: 4:41 p.m. - 4:46 p.m.
Abstract: 431
The Impact of Preoperative DEXA Scores Following Arthroplasty on Long-term
Clinical and Radiographic Outcomes - A 5-Year Follow-up Study
F.H. Geisler1, R.J. Banco2, L.G. Jenis2, R.D. Guyer3, S.L. Blumenthal3, M.E. Majd4, R.T. Hold4, J.J. Regan5, D.C. Wong5
1Illinois Neuro-Spine Center, Aurora, IL, United States, 2The Boston Spine Group, LLC, Newton, MA, Untied States, 3Texas Back Institute, Plano, TX, United States, 4Spine Source of Los Angeles, Beverly Hills, CA, United States, 5Panorama Orthopedics and Spine Center, Gold

FACET REPLACEMENT:
Moderator:  Courtney Brown, MD

4:00 p.m. - 4:03 p.m.  Discussion: 4:03 p.m. - 4:08 p.m.
Abstract: 112
ACADIA™ Facet Replacement US IDE Pilot Study: 6 Month Follow-up Results for 20
Patients at Four Centers
J.J. Regan1, C.A. Hartjen2, R.F. Dryer3, D.J. DiRisio4
1St. John's Hospital, Santa Monica, CA United States, 2Greater Baltimore Medical Center, Baltimore, MD United
States, 3Central Texas Spine Institute, Austin, TX United States, 4Albany Medical Center, Albany, NY United States

4:08 p.m. - 4:11 p.m. Discussion: 4:11 p.m. - 4:16 p.m.
Abstract: 510
Kinematics of Facet Replacement Adjacent to Fusion
D.M. Rosler1, S. Vadapalli1, S.G. Sjovold1, R.P. Ching2
1Archus Orthopedics, Inc., Redmond, WA United States, 2University of Washington, Applied Biomechanics
Laboratory, Seattle, WA United States

4:16 p.m. - 4:19 p.m. Discussion: 4:19 p.m. - 4:24 p.m.
Abstract: 290
Development of a Non-invasive Model Based Technique for Characterizing Facet
Articulation in the Human Cadaveric Lumbar Spine
B.C. Cheng1, D.J. Cook1, D. Rosler2, S. Webb3
1University of Pittsburgh, Neurosurgery, Pittsburgh, PA United States, 2Archus Orthopedics, Redmond, WA United
States, 3Florida Spine Institute, Clearwater,FL United States

4:24 p.m. - 4:27 p.m.  Discussion: 4:27 p.m. - 4:32 p.m.
Abstract: 215
Facet Arthroplasty in Patients with Reduced Disc Height - Preliminary Data from an
Ongoing U.S. IDE Clinical Trial
S. Webb1, K. Sethi2, A. Castellvi3, B. Sachs4, C. Wingo5, M. Halperin6, D. Wiles7, C. Brown8
1Florida Spine Institute, Clearwater, FL United States, 2Southern NY Neurosurgical Group, Johnson City, NY United
States, 3Florida Orthopedic Institute, Tampa, FL United States, 4Texas Back Institute, Plano, TX United States,
5Capital Regional Medical Center, Tallahassee, FL United States, 6Norwich Orthopedic Group, North Franklin,CT
United States, 7East Tennessee Brain and Spine Center, Johnson City, TN United States, 8Panorama
Orthopedics, Golden, CO United States

4:32 p.m. - 4:35 p.m.  Discussion: 4:35 p.m. - 4:40 p.m.
Abstract: 269
The Total Facet Arthroplasty System® (TFAS®) in the Treatment of Spinal Stenosis:
Worldwide Experience with Longest Follow-up of 36 Months
A. Castellvi1, S. Webb2, K. Sethi3, B. Sachs4, C. Wingo5, M. Halperin6, C. Brown7, G. Bajares8, A. Perez-
Oliva8, R. Prejbeanu9, I. Branea9
1Florida Orthopedic Institute, Tampa, FL, United States, 2Florida Spine Institute, Clearwater, United States,
3Southern NY Neurosurgical Group, Johnson City, NY United States, 4Texas Back Institute, Plano, TX, United
States, 5The Disc Replacement Center of North Florida, Tallahassee, FL United States, 6Norwich Orthopedic
Group, North Franklin, CT United States, 7Panorama Orthopedics, Golden, CO United States, 8Instituto de Columna
de Caracas, Caracas, Venezuela, 9Victor Babes University of Medicine and Pharmacy, Timisoara, Romania

4:40 p.m. - 4:43 p.m.  Discussion: 4:43 p.m. - 4:48 p.m.
Abstract: 501
Treatment of Lumbar Spinal Stenosis with a Total Posterior Arthroplasty Prosthesis
versus Posterior Lumbar Fusion: A Prospective Report on 104 Patients
L. Pimenta1, A. Hamzaoglu2, P. Mc Afee3, R. Hes4, Y. Anekstein5, A. Cappuccino6, D. Coric7, R. Banco8, C.
Comey9, S. Robbins10, F. Geisler11, P. Slosar12, A. Schwartz13, G. Girasole14, P. Ullrich15, J. Yue16, J.
Regan17, L. Khoo18, C. Lauryssen19, J. Miles20, P. Asdourian21, K. Gill22, J. Small23
1Instituto de Patologia da Coluna, Sao Paolo, Brazil, 2Istanbul Spine Center at Florence Nightingale Hospital,
Istanbul, Turkey, 3Orthopedic Associates, Towson, MD United States, 4Middleheim Hospital Spine Unit, Antwerp,
Belgium, 5Assaf Harofe, Tel Aviv, Israel, 6Buffalo Spine Surgery, Lockport, NY United States, 7Carolina
Neurosurgery and Spine Associates, Charlotte, NC United States, 8The Boston Spine Group, LLC, Newton, MA
United States, 9New England Neuro Associates, Springfield, MA United States, 10Milwaukee Spinal Specialists,
Milwaukee, WI United States, 11Illinois Neuro-Spine Center, Aurora, IL United States, 12Spine Care Medical Group,
Daly City, CA United States, 13Orthopedic Spine Care of Long Island, Melville, NY United States, 14The Orthopedic
and Sports Medicine Center, Trumbull, CT United States, 15Neurospine Center of Wisconsin, Appleton, WI United
States, 16Yale University School of Medicine, New Haven, CT United States, 17Century City Doctors Hospital,
Beverly Hills, CA United States, 18UCLA Spine Center, Santa Monica, CA United States, 19Institute for Advanced
Spinal Research in California, Beverly Hills, CA United States, 20Columbia Orthopedic Group, Columbia, MO United
States, 21Union Memorial Hospital, Baltimore, MD United States, 22UT Southwestern Medical Center, Dallas, TX
United States, 23Florida Orthopaedic Institute, Tampa, FL United States

INTERSPINOUS DISTRACTION:
Moderator:  Doug Wardlaw, MB, ChB, ChM, FRCSEd

4:00 p.m. - 4:03 p.m.  Discussion: 4:03 p.m. - 4:08 p.m.
Abstract: 433
Interspinous Distraction in Conjunction with Decompressive Facetectomy: Effect on
Spinal Kinematics
C.D. Chaput1, A.M. Muzumdar2, A.V. Ingalhalikar2, S. Khalil2
1Scott & White Hospital, Texas A&M HSC, Orthopedics, Temple, TX United States, 2Globus Medical Inc.,
Research, Audubon, PA United States

4:08 p.m. - 4:11 p.m.  Discussion: 4:11 p.m. - 4:16 p.m.
Abstract: 162
Radiological Changes Following the Percutaneous Implantation of a New
Interspinous Spacer
M.H. Mayer1, C. Siepe2, C. Mehren2, F. Zentz2, A. Korge2
1Orthocenter Munich, Spine Center, Muenchen, Germany, 2Orthopaedic Clinic Munich-Harlaching, Spine
Center Munich, Muenchen, Germany

4:16 p.m. - 4:19 p.m. Discussion: 4:19 p.m. - 4:24 p.m.
Abstract: 487
Clinical Outcome, Survivorship Analysis and Predictive Factors for Failure after X
STOP Implantation
A. Tuschel1, A. Chavanne1, M. Meissl1, C. Eder1, S. Becker1, M. Ogon1
1Orthopaedic Hospital Vienna - Speising, Spine Departement, Wien, Austria

4:24 p.m. - 4:37 p.m. Discussion: 4:37 p.m. - 4:42 p.m.
Abstract: 414
X-stop Interspinous Decompression Device in the Management of Symptomatic
Lumbar Canal Stenosis. Is There a Correlation between Outcome and Change in
Canal Area at Two Years?
A. Nandakumar1, N. Bilolikar1, N. Clark1, M. Vadhva1, J. Peehal1, F.W. Smith2, D. Wardlaw3
1Woodend Hospital, Radiology/ Orthopaedics, Aberdeen, United Kingdom, 2Woodend Hospital, Radiology,
Aberdeen, United Kingdom, 3Woodend Hospital, Orthopaedics, Aberdeen, United Kingdom

MIS I
Moderator:  Tony Yeung, MD

4:00 p.m. - 4:03 p.m.  Discussion: 4:03 p.m. - 4:08 p.m.
Abstract: 194
Balloon Kyphoplasty in Comparison to a Conservative Treatment in the Long Term
in Osteoporotic Vertebral Fractures
R. Pflugmacher1, P. Schleicher2
1Charité, Universitätsmedizin Berlin, Centrum für Muskuloskeletale Chirurgie, Berlin, Germany, 2BG
Unfallklinik Frankfurt, Frankfurt, Germany

4:08 p.m. - 4:11 p.m.  Discussion: 4:11 p.m. - 4:16 p.m.
Abstract: 551
Plasma Disc Decompression Compared to Fluoroscopy-guided Transforminal
Epidural Steroid Injections for Symptomatic Contained Lumbar Disc Herniation: A
Randomized, Controlled Trial: Two Year Results
P. Gerszten1, M.W. Smuck2, J.P. Rathmell3, T.T. Simopolous4, T. Crabtree5, D.A. Bloch6, S.M. Bhagia7, C.K.
Mocek8, M.C. Covey8, C.W. Huston9, D.M. Schultz10, P.N. Reusswig11, W.J. Ford12, J.M. Tarver13, C.A.
Pino13, D.D. Bacon14, J.A. Kabazie15
1University of Pittsburgh Medical Center, Pittsburgh, PA United States, 2The Spine Program, University of
Michigan, Ann Arbor, MI United States, 3Center for Pain Medicine, Harvard Medical, Massachusetts General
Hospital, Department of Anesthesia, Boston, MA United States, 4Beth Israel Deaconess Medical Center, Boston, MA
United States, 5Biostatistics Consultant, Santa Rosa, CA United States, 6Stanford University, Division of
Biostatistics, Stanford, CA  United States, 7OrthoCarolina, Charlotte, NC United States, 8Innovative Spine Care, Little
Rock, AK United States, 9The Orthopedic Clinic Association, Scottsdale, AZ United States, 10Medical Advanced
Pain Specialists, Minneapolis, MN United States, 11Colorado Pain Management, North Valley Hospital, Thornton,CO
United States, 12TRIA Orthopedic Center, Minneapolis, MN United States, 13Center for Pain Medicine, University
of Vermont, Burlington, VT United States, 14Consultants in Pain Research, San Antonio, TX United States, 15The
Institute for Pain Medicine, Western Pennsylvania Hospital, Pittsburgh, PA United States

4:16 p.m. - 4:19 p.m.  Discussion: 4:19 p.m. - 4:24 p.m.
Abstract: 205
Nerve Injury to the Posterior Rami Medial Branch during the Insertion of Pedicle
Screws: Comparison of the Mini-open vs. Percutaneous Pedicle Screw Insertion
Techniques
C.W. Kim1, G.J. Regev2, W. Taylor2, Y.P. Lee2, S.R. Garfin2
1MISI at Alvarado Hospital, San Diego, CA, United States, 2University of California, San Diego, Orthopaedics, San Diego, CA, United States

4:24 p.m.  - 4:27 p.m. Discussion: 4:27 p.m. - 4:32 p.m.
Abstract: 296
Balloon Kyphoplasty using KyphOsTM FS(R) Calcium Phosphate Bone Substitute for
the treatment of Traumatic Vertebral Body Fractures: One Year Outcome
J.K. Van Meirhaeghe1, J. Hillmeier2, J.P. Meeder3, R. Gumpert4, P. Vanderschot5, F. Ortner6, BEST Study
Investigators
1AZ St-Jan, Dienst Orthopaedie en Traumatologie, Brugge, Belgium, 2St. Vincenz Krankenhaus, Limburg,
Germany, 3Universität Heidelberg, Unfall-und Wiederherstellungs Chirurgie, Heidelberg, Germany,
4Universitätsklinik für Unfallchirurgie, Graz, Austria, 5UZ KUL Gasthuisberg, Traumatologie, Leuven, Belgium,
6A.Ö. Krankenhaus der Statuarstadt, Wiener Neustadt, Austria

4:32 p.m. - 4:35 p.m. Discussion: 4:35 p.m. - 4:40 p.m.
Abstract: 183
New Classification of Venography Patterns before Percutaneous Vertebroplasty for
Osteoporotic Compression Fractures
J. Doh1, S. Kim1, S. Yun1
1Soonchunhyang University Chonan Hospital, Neurosurgery, Chonan, Korea, Republic of

4:40 p.m. - 4:43 p.m. Discussion: 4:43 p.m. - 4:48 p.m.
Abstract: 611
Thoracic and Lumbar Percutaneous Pedicle Screws: Safety and Accuracy
T.Y. Tannoury1, J. Macko2
1Boston University, Orthopedic, Boston, MA ,United States, 2Boston University, Medical School, Boston, MA, United
States

5:00 PM to 7:00 PM:  OPENING RECEPTION

TRANSFER OF PRESIDENCY

7:30 AM to 9:00 AM Motion Preservation: Current Clinical and Basic Science Challenges:

Moderators:

Frank M. Phillips, MD and Avinash Patwardhan, PhD

Goal:  A symposium highlighting what do we know, what are the gaps in knowledge, what are the challenges for motion preservation technologies

• Lumbar TDR Clinical:  Paul McAfee, MD;   Basic Science:  Peter McCombe, MD
• Cervical TDR Clinical:  Jurgen Harms, Prof. Dr.,  Basic Science:  Vijay Goel, PhD
• Nucleus Replacement Clinical:  Hansen Yuan, MD; Basic Science:  Hans-Joachim Wilke, PhD
• Posterior Dynamic Stabilization Clinical:  Dilip Sengupta, MD, Dr. Med;  Basic Science:  Bryan Cunningham, MSc
• Discussion/Questions

9:00 AM to 9:30 AM Break/Exhibits

9:30 AM to 10:15 AM Presidential Guest Speaker - Dr. David Hee-Don Lee: WTCA

10:15 AM to Noon:  Cervical TDR I

Cervical TDR:  Mid Term Outcomes
Moderators:  Frank Phillips, MD and Karin Büttner-Janz, MD, PhD

10:15 a.m. - 10:20 a.m.
Abstract: 587
Results from the Prospective, Randomized Multi-center IDE Trial of ProDisc®-C vs.
ACDF with 4-year Follow-up and Continued Access Patients
R.B. Delamarter1, D. Murrey2, M. Janssen3, J. Goldstein4, J. Zigler5, B. Tay6, B. Darden2
1The Spine Institute, Santa Monica, CA, United States, 2OrthoCarolina Spine Center, Charlotte, NC United
States, 3Spine Education Research Institute, Thornton, CO United States, 4NYU Hospital for Joint Diseases, NY,NY
United States, 5Texas Back Institute Research Foundation, Plano, TX United States, 6UCSF, Orthopaedic
Surgery, San Francisco, CA United States

10:21 a.m. - 10:26 a.m.
Abstract: 153
ProDisc®-C Total Disc Replacement: 36 Month Follow-up
R. Bertagnoli1
1Prospine, Straubing Bogen, Germany

10:27 a.m. - 10:32 a.m.
Abstract: 288
Long-term Follow-up Study of Patients Treated with the Prestige Artificial Cervical
Disc at a Single Centre
N.D. Park1, J.T. Robertson2, N.H. Metcalf2, N.K. Patel1
1Frenchay Hospital, Neurosurgery, Bristol, United Kingdom, 2Medtronic Sofamor Danek, Memphis, TN United
States

10:33 a.m. - 10:40 a.m. Discussion

Cervical TDR and Myelopathy
Moderators:  Todd Albert, MD and Chun-Kun Park, MD

10:41 a.m. - 10:46 a.m.
Abstract: 499
Is Single Level Cervical Arthroplasty Contraindicated with Laminoplasty? An in-vitro
Biomechanical Investigation
J. Kikkawa1, O. Shirado2, N. Hu1, B.W. Cunningham1, P.C. Mcafee3, H. Oda2
1St. Joseph Medical Center, Orthopaedic Spinal Research Laboratory - Jordan #167, Towson, MD United States,
2Saitama Medical University, Moroyama, Japan, 3St. Joseph Medical Center, Scoliosis and Spine Center,
Towson, MD United States

10:47 a.m. - 10:52 a.m.
Abstract: 530
Outcomes in Patients with Cervical Myeloradiculopathy in a Prospective
Randomized Clinical Trial of CTDR vs. ACDF
C. Chaput1, M. Rosner2, J. Ahrens3
1Texas A&M HSC - Scott & White Hospital, Orthopaedic Surgery, Temple, TX United States, 2Walter Reed Army
Medical Center, Neurosurgery, Washington, D.C. United States, 3Pivotal Research Solutions, Allen, TX  United States

10:53 a.m. - 10:58 a.m.
Abstract: 349
Results of Bryan Disc Replacement for Severe Cervical Spondylotic Disorder
C.-H. Kao1
1CHI-MEI Foundation Hospital, Department of Surgery, Yung Kang City, Taiwan, Republic of China

10:59 a.m. - 11:06 a.m. Discussion

Cervical TDR Basic Science
Moderators:  Avinash Patwardhan, PhD and Richard Hall, Prof. Dr

11:07 a.m. - 11:12 a.m.
Abstract: 635
Does Implant Design Impact Cervical TDR Performance - A Finite Elem
Investigation
V. Goel1, N. Kulkarni1, A. Chikka1, M. Kodigudla1, L. Ferrara2
1The University of Toledo, Engineering Center for Orthopaedic Research Excellence (E-CORE), Departments of Bioengineering and Orthopaedic Surgery, Toledo, OH, United States, 2Orthokinetic Technologies, LLC, Southport, MI, United States

11:13 a.m. - 11:18 a.m.
Abstract: 569
Variability of Range of Motion For 3-lobe versus Ball and trough TDR Designs
B.-K.N. Nguyen1, J.K. Taylor1, S. Despres1, K.S. Yonemura2
1Dimicron Inc., Orem, UT United States, 2University of Utah, Neurosurgery and Orthopaedics, Salt Lake City,UT
United States

11:19 a.m. - 11:24 a.m.
Abstract: 94
Biotribology Assessment of NUNEC, a PEEK on PEEK Cervical Total Disc
Replacement, According to ISO and ASTM Recommendations
T. Brown1, Q.B. Bao1, N. Hallab2
1Pioneer Surgical Technology, Marquette, MI United States, 2Rush University Medical Center, Chicago, IL United
States

11:25 a.m. - 11:32 a.m. Discussion

Cervical TDR:  Radiographic/Outcomes
Moderators:  Hansen Yuan, MD and Rick Sasso, MD

11:33 a.m. -11:38 a.m.
Abstract: 343
Comparison of Index and Adjacent Level Kinematics Following Cervical Disc
Replacement versus Fusion: A Radiographic Analysis
D.K. Park1, E.L. Lin1, B. Braaksma1, F.M. Phillips1
1Rush University, Orthopedics, Chicago, IL United States

11:39 a.m. - 11:44 a.m.
Abstract: 192
Difference in Occurrence of Heterotopic Ossification According to Prosthesis Type
in the Cervical Artificial Disc Replacement
S. Yi1, M. Yang1, P.G. Ahn1, D.Y. Lee1, Y. Ha1, K.N. Kim1, H.C. Shin2, D.H. Yoon1, N.S. Yonsei1
1Spine and Spinal Cord Institute,Yonsei University, College of Medicine, Neurosurgery, Seoul, Korea,
Republic of, 2Kangbuk Samsung Hospital, Sungkyunkwan University, Neurosurgery, Seoul, Korea, Republic
Of

11:45 a.m. - 11:50 a.m.
Abstract: 659
Predicting Relief of Radiculopathy in Patients Receiving ACDF or TDR: Factors
Associated with Response
F.M. Phillips1, J. Ahrens1
1Rush University Medical Center, Chicago, IL United States

11:51 a.m. - 11:58 a.m. Discussion

Noon to 2:00 PM Industry Workshops

2:00 PM to 3:45 PM: Lumbar TDR I

Lumbar TDR Outcomes
Moderator:  Rick Guyer, MD

2:00 p.m. - 2:05 p.m.
Abstract: 65
Sexual Function in Men and Women Before and after Total Disc Replacement
Compared to Posterior Lumbar Fusion
S. Berg1, H. Tropp2
1Stockholm Spine Center, Upplands Väsby, Sweden, 2University Hospital, Linköping, Sweden

2:06 p.m. - 2:11 p.m.
Abstract: 478
Is Preoperative Disc Height a Contributing Factor in 5-year Success Rate with
Arthrodesis and Arthroplasty?
S.L.Blumenthal1, R.D.Guyer1, L.G.Jenis2, D.C.Wong3, F.H.Geisler4, R.T.Holt5, M.E.Majd5, J.J.Regan6, G.DeMuth7, B.H.Hetzell7
1Texas Back Institute, Plano,TX, United States, 2The Boston Spine Group, LLC, Newton,MA, United States,3Panorama Orthopedic and Spine Center, Golden, CO, United States, 4Illinois, United States, Neuro-Spine Center, Aurora, IL, 5Spine Surgery PCS, Louisville, KY, United States, 6Spine Source of Los Angeles, Beverly Hills, United States, 7Stat-Tech Services, Chapel Hill, NC, United States

2:12 p.m. - 2:17 p.m.
Abstract: 178
Is the Final Outcome Predictable Following Total Lumbar Disc Replacement?
C.J. Siepe1, A. Tepass2, W. Hitzl3, P. Meschede1, R.W. Beisse1, A. Korge1, M.H. Mayer1
1Orthopaedic Clinic Munich-Harlaching, SpineCenter, Munich, Germany, 2Paracelsus Medical University
PMU, Salzburg, Austria, 3Paracelsus Medical University PMU, Biostatistics, Research Office, Salzburg,
Austria

2:18 p.m. - 2:25 p.m. Discussion

Lumbar TDR BioMechanics
Moderators:  Bryan Cunningham, MSc and David Wong, MD, MSc, FRSC©

2:26 p.m. - 2:31 p.m.
Abstract: 75
Explanation of Unequal Wear Patterns in the Charité Polyethylene Core: A
Quantitative Analysis of Intra-prosthesis Motion Distribution
A. Patwardhan1, N. Wharton2, P. Newman2, L. Voronov3, G. Carandang4, S. Renner4, R. Havey4
1Loyola University Chicago, Orthopaedic Surgery and Rehabilitation, Maywood, IL United States, 2Medical
Metrics, Inc., Houston, TX United States, 3Loyola University Chicago, Maywood, IL United States, 4Edward Hines
Jr. VA Hospital, Hines, IL United States

2:32 p.m. - 2:37 p.m.
Abstract: 335
Influence of a TDR Device on Facet Joint Biomechanics
N. Inoue1, A.A. Espinoza Orías1, R. Natarajan1, M.A. Wimmer1,T. Takigawa1,2, S. Gohgi1,3,, P. Paré4, F.
Chan4
1Rush University Medical Center, Orthopaedic Surgery, Chicago, IL, United States, 2Okayama University,
Orthopaedic Surgery, Okayama,Japan 3Doshisha University, Mechanical Engineering, Kyoto, Japan,
4Medtronic, Spinal & Biologics, Memphis, TN, United States

2:38 p.m. - 2:43 p.m.
Abstract: 212
First Generation TDR Devices Do Not Adequately Resist Shear in the Lumbosacral
Spine
M.F. Metzger1, D.S. Bradford1, J.C. Lotz1
1University of California San Francisco, CA Orthopaedic Surgery, San Francisco, CA United States

2:44 p.m. - 2:51 p.m. Discussion

Lumbar TDR:  Comparative Studies
Moderator:  Tom Errico, MD and Boyle Cheng, PhD

2:52 p.m. - 2:57 p.m.
Abstract: 55
24-month Follow-up of a Prospective Randomized Comparison of Two Lumbar Total
Disc Replacements
R.D. Guyer1, S.L. Blumenthal1, A. Cappuccino2
1Texas Back Institute, Plano, TX United States, 2Buffalo Spine Surgery, Lockport, NY United States

2:58 p.m. - 3:03 p.m.
Abstract: 144
Volumetric Analysis of Foraminal Parameters Following Lumbar Total Disc
Replacement: A Radiographic and Clinical Comparison of 3 Biomechanical Types of
Lumbar Disc Replacements: A Semi-constrained Device, a Controlled Translation
Device (CTD) and an Unconstrained Device
J.J. Yue1, R. Garcia2, J.M. Morreale1
1Yale University School of Medicine, Orthopaedic Surgery, New Haven, CT United States, 2Aventura Hospital,
Orthopaedic Surgery, Aventura, FL United States

3:04 p.m. - 3:09 p.m.
Abstract: 524
Biomechanical Comparison of the Prodisc-L, Charité, and Maverick Lumbar Disc
Prostheses
D.J. DiAngelo1, R. Bertagnoli2, K.T. Foley3, B.R. Morrow1, P. Wong1, B.P. Kelly1, K. Kiehm3, A. Sin3
1The University of Tennessee Health Science Center, Department of Biomedical Engineering and Imaging,
Memphis, TN United States, 2Pro Spine, St. Elisabeth Hospital, Straubing, Germany, 3The University of
Tennessee Health Science Center, Department of Neurosurgery, Memphis, TN United States

3:10 p.m. - 3:17 p.m. Discussion

Lumbar TDR Basic Science
Moderators:  William Sears, MB, BS, FRACS and Matthew Gornet, MD

3:18 p.m. - 3:23 p.m.
Abstract: 634
FlexiCore® Lumbar Arthroplasty: Blood Metal Ion Levels
T. Errico1, R. Sasso2, J. Zucherman3, T. Soo4, G. Miz5
1New York University Medical Center, New York City, NY United States, 2Indiana Spine Group, Indianapolis, IN
United States, 3Spine Center, San Francisco, CA United States, 4Michigan Spine and Brain Surgeons,
Southfield, MI United States, 5Bone and Joint Physicians, Oak Lawn, IL United States

3:24 p.m. - 3:29 p.m.
Abstract: 107
Total Disc Arthroplasty Using a Compressible Disc Prosthesis: Effect of
Compressive Preload Magnitude on the Kinematics of Lumbar Spine
A.G. Patwardhan1, L.I. Voronov1, S.M. Renner2, G. Carandang2, R.M. Havey2
1Loyola University Chicago, Orthopaedic Surgery and Rehabilitation, Maywood, IL, United States, 2Edward
Hines Jr. VA Hospital, Hines, IL, United States

3:30 p.m. - 3:35 p.m.
Abstract: 155
Comparison of GUR 1020 Ultra High Molecular Weight Polyethylene Wear Debris
from Simulation Studies on Prodisc-L Total Disc Replacements, Total Hip
Replacements and Total Knee Replacements
J.L. Tipper1, R.E. Vicars1, R.M. Hall1, J. Fisher1, E. Ingham1
1University of Leeds, Institute of Medical and Biological Engineering, Leeds, United Kingdom

3:36 p.m. - 3:43 p.m. Discussion

3:45 PM to 4:35 PM:  Biologics Symposium

Disc Biologics:  “The Ultimate Motion Preservation”
Moderator: Dr. Ashish Diwan

• Biologics of spinal pain: 
• Basic Science of Disc Degeneration and Repair Challenges:  Jill Urban, PhD 
• Treatment with growth factors and genes: Dr. Hyun Bae
• Cell-based treatment strategies:  Hans Meisel, MD, PhD
• Discussion/Questions

4:45 PM to 5:15 PM  Exhibits

5:15 PM to 6:00 PM  ORAL POSTERS:   SESSION TWO(3 min./3 min.discussion)

Cervical II
Moderator:  Alan Crockard, DSc, FRCS (Ed), FDS RCS (Eng), FRCP

5:15 p.m. - 5:18 p.m. Discussion: 5:18 p.m. - 5:21 p.m.
Abstract: 574 
Kinematic Response of 3-lobe Cervical Disc Replacement Device as a Function of
AP Placement
B.-K. Nguyen1, J.K. Taylor1, S. Despres1, K.S. Yonemura2
1Dimicron Inc., Orem, UT, United States, 2University of Utah, Neurosurgery and Orthopaedics, Salt Lake City,UT,
United States

5:21 p.m. - 5:24 p.m. Discussion: 5:24 p.m. - 5:27 p.m.
Abstract: 498
Effects of a Saddle Joint Prosthesis on Cervical Facet Joint Loading
A. Valdevit1,2, M. Quirno1, J. Stieber1, M. Kang1, T. Errico1 E. Broderick2,
1NYU School of Medicine, New York, NY, United States, 2Stevens Institute of Technology, Hoboken,NJ, United
States

5:27 p.m. - 5:30 p.m. Discussion: 5:30 p.m. - 5:33 p.m.
Abstract: 217
Biomechanics of the CerviCore® Intervertebral Disc
N.R. Crawford1, P.M. Reyes1, A.G.U. Sawa1, N. Theodore1,K.O. Colle2, J.M. Butler3
1 Barrow Neurological Institute, Spinal Biomechanics, Phoenix, AZ, United States, 2Brain & NeuroSpine Clinic of Missouri, LLC, Cape Girardeau, MO, United States, 3Coastal Neurosurgcal Associates, Wilmington, DE, United States

5:33 p.m. - 5:36 p.m. Discussion: 5:36 p.m. - 5:39 p.m.
Abstract: 206
Radiological Analysis of the Cervical Spine Following Implantation of Prodisc-C
A. Jaiswal1, G.K. Liu1, H.-K. Wong1
1National University Health System, University Orthopaedics and Hand Cluster, Singapore, Singapore

5:39 p.m. - 5:42 p.m. Discussion: 5:42 p.m. - 5:45 p.m.
Abstract: 475
Radiographic Analysis of Rotation at Index and Adjacent Levels Following Total
Disc Replacement - Clinical Experience from IDE Subjects
D. Coric1, M. Krinock2, F. Phillips3, J. Yue4, H. Hess5, N. Wharton6, J. Hipp6
1Carolina Neurosurgery and Spine Associates, Charlotte, NC, United States, 2Borgess Medical Center,
Kalamazoo, MI, United States, 3Rush University Medical Center, Chicago, IL, United States, 4Yale University, New
Haven, CT, United States, 5Johnson County Spine, Overland Park, KS, United States, 6Medical Metrics, Inc, Houston,TX,
United States

5:45 p.m. - 5:48 p.m. Discussion: 5:48 p.m. - 5:51 p.m.
Abstract: 151
Sagittal Alignment and Ranges of Motion 1 Year after Cervical Disc Replacement
with the Discocerv® Cervical Prosthesis
A. Ramadan1, O. Gille2
1Clinique Beaulieu, Neurosurgery, Geneve, Switzerland, 2CHU Pellegrin, Dept of Orthopaedics &
Traumatology, Bordeaux, France

Lumbar II
Moderators:  Michael Ahrens, MD

5:15 p.m. - 5:18 p.m.  Discussion: 5:18 p.m. - 5:21 p.m.
Abstract: 439
The Impact of Postoperative Disc Height Following Arthroplasty on Long-term
Clinical and Radiographic Outcomes - A 5-year Follow-up Study
F.H. Geisler1,L.G.Jenis2,R.J. Banco2, S.L. Blumenthal3, R.D. Guyer3, R.T. Holt4, M.E. Majd4, J.J. Regan5, D.C. Wong6, G. DeMuth7, B.H. Hetzell7
1IIllinois Neuro-Spine Center, Aurora, IL, United States, 2The Boston Spine Group, LLC, Newton, MA, United States,3Texas Back Institute, Plano, TX, United States, 4Spine Surgery, PCS, Louisville, KY, United States, 5Spine Source of Los Angeles, Beverly Hills, CA, United states, 6Panorama Orthopedics and Spine Center, Golden, CO, Untied States, 7Stat-Tech Services, Chapel Hill, NC, United States

5:21 p.m. - 5:24 p.m.  Discussion: 5:24 p.m. - 5:27 p.m.
Abstract: 663
Magnetic Resonance Imaging of Artificial Lumbar Disks: Safety and Metal Artifacts
M. Li1, C.-W. Yang1, S.-S. He1, A.-S. Dong1, J. Wang1, J.-P. Lu1
1Changhai Hospital, Orthopedics Department, Shanghai, China

5:27 p.m. - 5:30 p.m.  Discussion: 5:30 p.m. - 5:33 p.m.
Abstract: 42
Total Disc Arthroplasty in Lumbar Spine: Contemporary or Controversy Compared
to Fusion Cages
K. Yoon1, J. Kang1
1St.Peter's Hospital, Neurosurgery, GangnamGu, Korea, Republic of

5:33 p.m. - 5:36 p.m.  Discussion: 5:36 p.m. - 5:39 p.m.
Abstract: 641
Radiographic Range of Motion Is Related to Clinical Outcomes in Lumbar Artificial
Disc Replacement Patients: One Site Analysis of 219 Patients with Minimum 2 Year
Follow-up, USA-FDA IDE Study
H. Bae1, R. Delamarter1, L.E.A. Kanim1, M. Kropf1
1The Spine Institute, Spine Research Foundation, Santa Monica, CA, United States

5:39 p.m. - 5:42 p.m.  Discussion: 5:42 p.m. - 5:45 p.m.
Abstract: 298
Sagittal Profile Modification after Lumbar Fusion, Posterior Dynamic Stabilization,
and Lumbar Total Disc Replacement - A Comparative Radiographic Analysis
W. Käfer1, C.R. Fraitzl1, C.A. Carazzo2, H. Reichel1, B. Cakir1
1University of Ulm, Department of Orthopaedics, Ulm, Germany, 2Hospital Sáo Vicente de Paulo, Department
of Neurosurgery, Passo Fundo, Brazil

5:45 p.m. - 5:48 p.m.  Discussion: 5:48 p.m. - 5:51 p.m.
Abstract: 130
Motion Track Variations in Alternative Wear Testing Protocols for Total Disc
Replacements
C.M. Goreham-Voss1, O. Dounie2, R. Vicars2, R.M. Hall2, J. Fisher2, T.D. Brown1
1The University of Iowa, Orthopaedic Surgery, Iowa City, IA United States, 2University of Leeds, Institute of
Medical and Biological Engineering, Leeds, United Kingdom

Posterior Dynamic Stabilization
Moderators:  Antonio Castellvi, MD and Paul Anderson, MD

5:15 p.m. - 5:18 p.m.  Discussion: 5:18 p.m. - 5:21 p.m.
Abstract: 616
The Effect of 'Pedicle-to-Pedicle Distance Excursion' after Posterior Dynamic
Stabilization - A Biomechanical Study on Cadaver Spine
D.K. Sengupta1, C.K. Demetropoulos2
1Dartmouth-Hitchcock Medical Center, Orthopedics, Dartmouth, NH United States, 2William Beaumont Hospital,
Royal Oak, MI United States

5:21 p.m. - 5:24 p.m.  Discussion: 5:24 p.m. - 5:27 p.m.
Abstract: 235
Adjacent- and Index Segment Mobility after Monosegmental Fusion, Posterior
Dynamic Stabilization and Total Lumbar Disc Replacement
B. Cakir1, H. Reichel1, W. Kaefer1
1University of Ulm, Department of Orthopaedic Surgery, Ulm, Germany

5:27 p.m. - 5:30 p.m.  Discussion: 5:30 p.m. - 5:33 p.m.
Abstract: 390
Posterior Motion Preserving Implants Evaluated by Means of Intervertebral Disc
Bulging and Annular Fiber Strains
H.-J. Wilke1, F. Heuer1, H. Schmidt1
1University of Ulm, Institute of Orthopeadic Research and Biomechanics, Ulm, Germany

5:33 p.m. - 5:36 p.m.  Discussion: 5:36 p.m. - 5:39 p.m.
Abstract: 513
In vitro Spine Biomechanical Comparison between Ti-6Al-4V and Nitinol (NiTi) Rod
Constructs
G. Donald1, G. Miz2, C. Theofilos3, M. Gornet4, K. Strauss5
1NJ Spine Group LLC, Shrewsbury, NJ United States, 2Bone & Joint Physicians, Oak Lawn, IL United States, 3The
Spine Center, Palm Beach Gardens, FL United States, 4The Orthopedic Center of St. Louis, St. Louis, MO United
States, 5K2M, Inc., Leesburg, VA United States

5:39 p.m. - 5:42 p.m.  Discussion: 5:42 p.m. - 5:45 p.m.
Abstract: 607
Are Flexible Rods Truly Dynamic? Biomechanical Testing of Semi-rigid Rods
R. Garcia1, J.A. Kozak2, H. Sandhu3, K. Wiechert4, N. Cheema5
1Orthopedic Care Center, Orthopedics, Aventura, FL United States, 2Fondren Orthopedic Group, Orthopedics,
Houston, TX United States, 3Hospital for Special Surgery, Orthopedics, New York, NY United States, 4Hessingpark
Clinic, Neurosurgery, Augsburg, Germany, 5Aesculap Implant Systems, Allentown, PA United States

5:45 p.m. - 5:48 p.m.  Discussion: 5:48 p.m. - 5:51 p.m.
Abstract: 516
Assessment of Normal Interpedicular Motion in Flexion-extension X-rays of the
Lumbar Spine
N.D. Wharton1, P. Newman1, J.A. Hipp1
1Medical Metrics, Inc, Houston, TX United States

5:51 p.m. - 5:54 p.m.  Discussion: 5:54 p.m. - 5:57 p.m.
Abstract: 209
A Prospective Randomized Evaluation of DyneSys vs. Isobar Posterior Pedicle
Based Dynamic Stabilization for the Treatment of Axial Back Pain
S.H. Kitchel1, L.P. Olson2
1Oregon Health and Sciences University, Department of Orthopedic Surgery, Eugene, OR United States,
2Orthopedic Spine Associates, Eugene, OR United States

MIS II
Moderator:  Ron Lehman, MD

5:15 p.m. - 5:18 p.m.  Discussion: 5:18 p.m. - 5:21 p.m.
Abstract: 203
Morphometric Analysis of the Ventral Nerve Roots and Retroperitoneal Vessels with
Respect to DLIF/XLIF Technique in Normal and Deformed Spines
G. Regev1, L. Chen2, M. Dahawan3, S.R. Garfin1, C.W. Kim1
1University of California, Orthopaedic Surgery, San Diego, CA United States, 2University of California, Radiology,
San Diego, CA United States, 3University of California, School of Medicine, San Diego, CA United States

5:21 p.m. - 5:24 p.m.  Discussion: 5:24 p.m. - 5:27 p.m.
Abstract: 592
A Comparison of the Operative Efficacy of Alif and Xlif L4-5 Fusion Procedures with
Bilateral Posterior Fixation
W.D. Smith1, J. Thalgott2, J.E. Garber3, M. Fogarty4, J.S. Raskin4, R.C. Saxena4, G. Christian4, S. Serrano4,
K. Malone4
1University Medical Center, Neurosurgery, Las Vegas, NV United States, 2Center for Diseases and Surgery of
the Spine, Las Vegas, NV United States, 3The Nevada Neurosciences Institute, Neurosurgery, Las Vegas, NV
United States, 4The NNI Research Foundation, Research, Las Vegas, NV United States

5:27 p.m. - 5:30 p.m.  Discussion: 5:30 p.m. - 5:33 p.m.
Abstract: 289
Single Level Lumbar Fusion at L5-S1: A Comparison of MIS TLIF and AxiaLIF
W.B. Rodgers1,2,3,4, C.S. Cox1,2,3,4, E.J. Gerber1,2,3,4
1Spine Midwest, Jefferson City, MO United States, 2NuVasive, San Diego, CA United States, 3Exactech, Gainesville, FL
United States, 4Trans1, Wilmington, DE United States

5:33 p.m. - 5:36 p.m.  Discussion: 5:36 p.m. - 5:39 p.m.
Abstract: 257
Iso-C/3D Neuronavigation versus Conventional Fluoroscopy for Minimally Invasive
Pedicle Screw Placement in Lumbar Fusion: Prospective Comparison of Screw
Placement
R. Härtl1, J.F. Fraser1, I. K. Parikh1, Dunne2
1Weill Cornell Medical College, New York-Presbyterian Hospital, Department of Neurological Surgery, New
York, NY, United States, 2Albany Medical College, Albany, NY, United States

5:39 p.m. - 5:42 p.m.  Discussion: 5:42 p.m. - 5:45 p.m.
Abstract: 490
Minimally Invasive Surgery for Degenerative Scoliosis
L. Pimenta1,2, J. Lhamby2, J. Fratezi2, E. Coutinho2, L. Oliveira2
1UCSD, San Diego, CA United States, 2Instituto de Patologia da Coluna, São Paulo, Brazil

5:45 p.m. - 5:48 p.m.  Discussion: 5:48 p.m. - 5:51 p.m.
Abstract: 581
Can Minimally Invasive Adult Spinal Deformity Correction Maintain Lordosis and
Global Sagittal Balance?
N. Anand1, R. Rosemann1, P. Salinas1, E. Baron1
1Cedars Sinai Medical Center, Institute for Spinal Disorders, Los Angeles, CA United States

5:51 p.m. - 5:54 p.m.  Discussion: 5:54 p.m. - 5:57 p.m.
Abstract: 372
Clinical Results of Percutaneous Rigid Endoscopic Discectomy for Various Types of
the Lumbar Disc Herniations
H.S. Kim1, C.I. Ju2, S.W. Kim2, S.M. Lee2, H. Shin2
1Mokpo Hankook Hospital, Neurosurgery, Mokpo, Korea, Republic of, 2Chosun University of Medical College, neurosurgery, Gwangju, Korea

Nucleus/Annulus
Moderator:  Carl Lauryssen, MD

5:15 p.m. - 5:18 p.m.  Discussion: 5:18 p.m. - 5:21 p.m.
Abstract: 521
Surgically Relevant in vitro Testing of Injectable PVA Nucleus Replacement
Hydrogels
G.J.C. Braithwaite1, J.A. Berlin1, C. McCormack1, B. Miller1
1Cambridge Polymer Group, Boston, MA, United States

5:21 p.m. - 5:24 p.m.  Discussion: 5:24 p.m. - 5:27 p.m.
Abstract: 29
Comparing the Effect of Leading Nucleus Replacement Technologies on Bone
Remodeling and Subsidence
M.C. Dahl1
1Disc Dynamics Inc, Eden Prairie, MN United States

5:27 p.m. - 5:30 p.m.  Discussion: 5:30 p.m. - 5:33 p.m.
Abstract: 562
Wear and Fatigue of a Nucleus Pulposus Replacement Using a Surrogate Annulus
and the ISO 18192 Duty Cycle
R.L. Siskey1, M.L. Villarraga1, H. Guerin1
1Exponent, Biomechanics, Philadelphia, PA United States

5:33 p.m. - 5:36 p.m.  Discussion: 5:36 p.m. - 5:39 p.m.
Abstract: 113
FEA Investigation of the Influence of Nucleus Replacement Hardness on Spinal
Biomechanics
G. Loughran1, B. Wessman1, S. Ainsworth1
1TranS1 Inc., Wilmington, DE United States

5:39 p.m. - 5:42 p.m.  Discussion: 5:42 p.m. - 5:45 p.m.
Abstract: 198
Intra-operative Analysis of Anular Competence as Related to Anular Repair in
Primary Lumbar Discectomy Patients
S. Griffith1, G.L. Blatt2, G.M. Amundson2, A.S. Bailey3
1 Anulex Technologies, Inc., Minnetonka, MN, 2Midwest Neurosurgery Associates, PA, Overland Park, KS, United States, 3Heartland Hand and Spine, Overland Park, KS, United States

5:45 p.m. - 5:48 p.m.  Discussion: 5:48 p.m. - 5:51 p.m.
Abstract: 654
Discographic Disc Healing with Posterior Dynamic Stabilisation of the Lumbar Spine
J.C. Sutcliffe1, A. Dadds1
1London Spine Clinic, London, United Kingdom

6:30 PM to 8:30 PM FACULTY RECEPTION

7:30 AM to 8:30 AM  Cervical Disc Replacement Symposium

Moderator:  Todd Albert, MD

Goal:  Overview of cervical motion preservation techniques.  This symposium will discuss appropriate indications and device selection for cervical reconstruction.

• Overview:  What is out there?  Todd Albert, MD
• What are the differences between types of disc replacements in terms of materials, degree of constraint, and way they are implanted?  Paul Anderson , MD
• What have the IDE studies shown us?  Rick Sasso, MD
• Complication avoidance and management.  Dan Riew, MD
• What will the future look like?  Frank Phillips, MD
• Discussion/Questions

8:30 AM to 9:00 AM  Break/Exhibits

9:00 AM to 10:45 AM Lumbar TDR II:

Lumbar TDR:  Novel Approaches
Moderators:  J.C. LeHuec, MD, PhD and Matthew Scott-Young, MD

9:00 a.m. - 9:05 a.m.
Abstract: 328
TSMS, a Novel Posterior Disc and Dynamic Stabilization System, Restores the
Kinematics of Lumbar Spine to Normal: In vitro & FEM Study
A. Kiapour1, V. Goel1, D. Mhatre1, J. Fernandez2, S. Brown2, R. Leyte-Vidal2, M. Krishna3
1The University of Toledo, Bioengineering, Toledo, OH United States, 2Disc Motion Technologies Inc., Boca
Raton, FL United States, 3The University Hospital of North Tees, Stockton-on-Tees, United Kingdom

9:06 a.m. - 9:11 a.m.
Abstract: 196
Preliminary Clinical Evaluation of Posterior Disc Arthroplasty
M. Balsano1, A. Bucciero2, U. Agrillo3
1Ospedale di Thiene, Thiene, Italy, 2Pineta Grande, Castel Volturno, Italy, 3San Petrini Hospital, Roma, Italy

9:12 a.m. - 9:17 a.m.
Abstract: 496
Two Year Follow-up in a Metal-on-Metal Lateral Disc Replacement: A Shift Paradigm
L. Pimenta1,2, J. Lhamby2, J. Fratezi2, E. Coutinho2, L. Oliveira2
1UCSD, San Diego, CA United States, 2Instituto de Patologia da Coluna, São Paulo, Brazil

9:18 a.m. - 9:25 a.m. Discussion

Lumbar TDR:  Biomechanics In Vivo
Moderators:  Lisa Ferrara, MD and Leonard Voronov, MD, PhD

9:26 a.m. - 9:31 a.m.
Abstract: 387
Observations from Retrieved ProDisc® Total Disc Replacements and Their
Implications for Interpreting Spine Wear Testing Conditions
T. Wright1, D. Chen1, N. Kelly1
1Hospital for Special Surgery, New York, NY United States

9:32 a.m. - 9:37 a.m.
Abstract: 476
Intervertebral Disc Kinematics Following Implantation of an Elastomeric Artificial
Lumbar Disc
W. Ogilvie1, J. Hipp2, N. Wharton2, S. Roth1, A. Clemow1
1Nexgen Spine, Whippany, NJ United States, 2Medical Metrics, Inc, Houston, TX United States

9:38 a.m. - 9:43 a.m.
Abstract: 404
Effects of Lumbar Artificial Disc Design on Intervertebral Mobility - In vivo
Comparison between Mobile-core and Fixed-core
J. Delecrin1, J. Allain2, J. Beaurain3, J. Godard4, P. Bernard5, J.-P. Steib6, T. Dufour7, L. Aubourg8, J.-M.
Nguyen9
1University Hospital, Orthopedic Surgery, Nantes, France, 2H Mondor University Hospital, Orthopedic
Surgery, Créteil, France, 3University Hospital, Neurosurgery, Dijon, France, 4University Hospital,
Neurosurgery, Besançon, France, 5Centre Aquitain du Dos, Orthopedic Surgery, Pessac, France, 6University
Hospital, Orthopedic Surgery, Strasbourg, France, 7University Hospital, Neurosurgery, Orléans, France,
8LDR Medical, R&D, Troyes, France, 9University Hospital, Biostatistics Department, Nantes, France

9:44 a.m. - 9:51 a.m. Discussion

Lumbar TDR:  Outcomes
Moderators:  Louis Nel, Jr., MD and Stephen Hochschuler, MD

9:52 a.m. - 9:57 a.m.
Abstract: 590
SF-36 Quality of Life Results: ProDisc-L® versus Circumferential Fusion - Results
from a Prospective, Multi-center Randomized Clinical Study
J. Goldstein1
1NYU Hospital for Joint Diseases, New York, NY United States

9:58 a.m. - 10:03 a.m.
Abstract: 233
A Prospective Outcome Analysis of Artificial Disc Replacement versus Anterior
Interbody Fusion in Single Level Symptomatic L5/S1 Degenerative Disc Disease
U.K. Debnath1, J. Lewis1, S. Shobaki1, S. Judd1, B.J. Freeman1, M.P. Grevitt1, S.H.M. Mehdian1, J.K. Webb1
1Nottingham University Hospital, The Centre for Spinal Studies & Surgery, Nottingham, United Kingdom

10:04 a.m. - 10:09 a.m.
Abstract: 594
Prospective Randomized US Trial Comparing an Unconstrained, Semi-constrained,
and Constrained TDR in the Treatment of Single Level Discogenic Pain: Radiograhic
Results from 2 Centers in an FDA IDE Study
R. Garcia1, J. Yue2
1Orthopedic Care Center, Orthopedics, Aventura, FL United States, 2Yale University School of Medicine,
Orthopedics, New Haven, CT United States

10:10 a.m. - 10:17 a.m. Discussion

Lumbar TDR:  Multi-Level
Moderators:  Thierry Marnay, MD and Carl Lauryssen, MD

10:18 a.m. - 10:23 a.m.
Abstract: 536
Hybrid Surgery: Fuson and Disc Arthroplasty Is Superior to Two Disc Arthroplasties
in the Lumbar Spine
J.C. Le Huec1, S. Aunoble2, P. Leijsen2
1Bordeaux University, Orthopaedic, Bordeaux, France, 2Bordeaux University, Bordeaux, France

10:24 a.m. - 10:29 a.m.
Abstract: 585
Multiple-level Lumbar Artificial Disk Replacement Adjacent to Concurrent Anterior
Lumbar Interbody Fusion: A Clinical and Radiographic Analysis of Sagittal Motion
Preservation at 2-6 Years
A. Rasouli1, R. Delamarter1, N. Ashraf1, B. Strenge1, L.E.A. Kanim1, H.W. Bae1, M. Kropf1
1The Spine Institute, Santa Monica, Santa Monica, CA United States

10:30 a.m. - 10:35 a.m.
Abstract: 141
Does an Adjacent Abnormal Non-concordant Discogram Impact the Clinical Results
of Lumbar Artificial Disc Replacement (ADR)?
K.A. Pettine1
1Rocky Mountain Associates in Orthopaedics, Loveland, CO United States

10:36 a.m. - 10:43 a.m.  Discussion

10:45 AM to 11:45 AM Complications (50 min.)

Complications TDR
Moderators:  Rudolf Bertagnoli, MD and Alejandro Reyes-Sanchez, MD

10:45 a.m. - 10:50 a.m.
Abstract: 50
Early Failure of Metal-on-Metal Artificial Discs due to Metal Hypersensitivity: The
Diagnostic and Treatment Approach in 4 Collected Cases
R.D. Guyer1, J. Shellock2, B. MacLennan3, D. Hanscom3, R.Q. Knight3, P. McCombe4, J. Jacobs5, D.
Bradford6
1Texas Back Institute, Plano, TX, United States, 2Texas Back Institute Research Foundation, Plano, TX, United
States, 3Orthopedics International, Seattle, WA, United States, 4Watkins Medical Centre, Brisbane, Australia,
5Rush University Medical Center, Chicago, IL, United States, 6University of California San Francisco, San
Francisco, CA ,United States

10:51 a.m. - 10:56 a.m.
Abstract: 51
Re-operations in Lumbar Total Disc Replacement: Experience with Our First
Consecutive 800 Cases
J.E. Zigler1, A. Parkinson2, R.D. Guyer1, S.L. Blumenthal1, D.D. Ohnmeiss2
1Texas Back Institute, Plano, TX United States, 2Texas Back Institute Research Foundation, Plano, TX United
States

10:57 a.m. - 11:02 a.m.
Abstract: 62
Retrospective Analysis of the Etiology and the Salvage Procedure in Cases of Failed
Lumbar Arthroplasty
K. Yoon1, C.-W. Lee1, J.-K. Kang1
1St.Peter's Hospital, Spine Center, Kangnamgu, Korea, Republic of

11:03 a.m. - 11:10 a.m. Discussion

Complications II
Moderators:  Luiz Pimenta, MD and Scott Blumenthal, MD

11:11 a.m. - 11:16 a.m.
Abstract: 308
Complications in 500 XLIF Surgeries
W.B. Rodgers1,2,3,4, C.S. Cox1,2,3,4, E.J. Gerber1,2,3,4
1Spine Midwest, Jefferson City, MO United States, 2NuVasive, San Diego, CA United States, 3Exactech, Gainesville, FL
United States, 4Trans1, Wilmington, DE United States

11:17 a.m. - 11:22 a.m.
Abstract: 529
A Comprehensive Analysis of 80 Cases of Failed Cervical Instrumentation.
Comparison of Revision to Fusion versus Revision with Arthroplasty - Total of 142
Operative Levels
D.M. Gloystein1, P.C. McAfee1,B.W. Cunningham2
1St. Joseph Medical Center, Scoliosis and Spine Center, Towson, MD, United States, 2St. Joseph Medical Center,
Orthopaedic Spinal Research Laboratory - Jordan #167, Towson, MD, United States

11:23 a.m. - 11:28 a.m.
Abstract: 621
Minimally Invasive Decompression for Lumbar Spinal Stenosis (LSS) - An Analysis
of Failed Cases
A. Farin1, P. Pazmino2, B. Cohen3, C. Lauryssen4
1University of Southern California, Neurosurgery, Los Angeles, CA  United States, 2Beverly Spine Institute, Los
Angeles, CA United States, 3UC Berkeley, Berkeley, CA United States, 4Tower Orthopaedic and Neurological
Institute, Beverly Hills, CA United States

11:29 a.m. -11:34 a.m.
Abstract: 258
The Vertebral Artery and the Cervical Pedicle: Morphometrical Analysis of a Critical
Neighborhood
A. Tomasino1, K. Parikh1, H. Koller2, W. Zink3, A.J. Tsiouris3, J. Steinberger4, R. Härtl1
1Weill Cornell Medical College, New York Presbyterian Hospital, Department of Neurological Surgery, New
York, NY United States, 2German Scoliosis Center Bad Wildungen, Werner-Wicker-Klinik, Bad Wildungen,
Germany, 3Weill Cornell Medical College, New York Presbyterian Hospital, Department of Neuroradiology,
New York, NY United States, 4Albert Einstein College of Medicine, Bronx, NY United States

11:35 a.m. - 11:42 a.m. Discussion

11:45 AM to Noon:  “Defining Value in Spinal Surgery in 2009”  by Prof. Alan Crockard

Noon to 2:00 PM  Industry Workshops

2:00 PM to 3:00 PM  MIS II (60 min.)

MIS Instrumentation
Moderator(s): Dewei Zou, MD and Ali Araghi, MD

2:00 p.m. - 2:05 p.m.
Abstract: 609
Non Fusion Surgery for Unstable Thoracolumbar Fractures
T.Y. Tannoury1, J. Macko2
1Boston University, Orthopedic, Boston, MA United States, 2Boston University, Medical School, Boston, MA United States

2:06 p.m. - 2:11 p.m.
Abstract: 254
Thoracolumbar Fracture Management with Selective Fusion and Instrumentation
Removal
M. B. Dekutoski1, M. Noger1,8, N. Anand2, P. Huddleston3, R. Gahr4, R. Issacs5, J. Riina6, F. Oner7
1Mayo Clinic School of Medicine, Orthopedics, Rochester, MN, United States, 2Cedars Sinai Medical Center, Los Angeles, CA, United States, 3Mayo Clinic School of Medicine, Rochester, MN, 4Univ Leipzig, Germany, Leipzig, Germany 5Duke Medical Center, Durham, NC, United States, 6Indy Spine, Indianapolis, IN, United States, 7UniversityMedical Center Utrecht, Utrecht, Netherlands, 8University Hospital, Hospital of Geneva, Geneva, Switzerland

2:12 p.m. - 2:17 p.m.
Abstract: 440
Minimally Invasive Posterior Trans Muscular C1-C2 Screw Fixation through an
Anatomical Corridor to Preserve Occipital-cervical Tension Band. Prospective 24
Months Clinical and Radiological Study
R. Diaz1, M. Berbeo1, M. Vergara1
1Hospital Universitario San Ignacio, Pontificia Universidad Javeriana, Neurosurgery, Bogota, Colombia

2:18 p.m. - 2:28 p.m. Discussion

Percutaneous Techniques
Moderators:  Neel Anand, MD and Larry Khoo, MD

2:29 p.m. - 2:34 p.m.
Abstract: 74
Transforaminal Endoscopic Stenosis Surgery
R. Morgenstern1
1Centro Médico Teknon, Barcelona, Spain

2:35 p.m. - 2:40 p.m.
Abstract: 398
Guided Oblique Lumbar Interbody Fixation: A Surgical Anatomic Study
S. St Clair1, I. Lieberman1
1Cleveland Clinic, Orthopaedic, Cleveland, OH United States

2:41 p.m. - 2:46 p.m.
Abstract: 619
An Economical Analysis of the Inpatient Treatment Costs after Primary Balloon
Kyphoplasty versus Conservative Treatment for Osteoporotic Vertebral Fractures
S.W.J. Becker1,2, K.P. Pfeiffer3, M. Ogon1
1Orthopaedic Hospital Vienna - Speising, Spine Center, Vienna, Austria, 2University of Sherbrooke,
Sherbrooke, Canada, 3University of Innsbruck, Innsbruck, Austria

2:47 p.m. - 2:57 p.m. Discussion

3:00 PM to 4:00 PM Biologics I

Moderator(s): Hans Meisel, MD, PhD and J.C. LeHuec, MD, PhD

3:00 p.m. - 3:05 p.m.
Abstract: 640
Human Chondrocyte Transplants for Damaged Intervertebral Disc
H.W. Bae1, L. Zhao1, L.E.A. Kanim1, R. Delamarter1
1The Spine Institute, Spine Research Foundation, Santa Monica, CA United States

3:06 p.m. - 3:11 p.m.
Abstract: 532
In vivo Intervertebral Disc Regeneration Using Stem Cell Derived Notochordal
Tissue
H. Sheikh1,2, R. Perez de la Torre2, M. Perez,-Cruet2, D. Svinarich3, K. Zakharian3, C. Fecek4, A. Vasquez4, R.G. Chaudhry4
1UCLA Comprehensive Spine Center, Neurological Surgery, Santa Monica, CA ,United States, 2Michigan Head
and Spine Institute, Neurological Surgery, Southfield, MI, United States, 3Providence Hospital, Research
Department, Southfield, MI, United States, 4Oakland University, Biological Sciences, Rochester Hills, MI, United
States

3:12 p.m. - 3:17 p.m.
Abstract: 339
Human Mesenchymal Stem Cells Differentiate into NP-like Cells when Cultured on
Allograft Nucleus Pulposus Scaffolds
F. Phillips1, M. Susilo2, E. Nauman2, D. Van Sickle3, B. Ferree4
1Rush University Medical Center, Orthopaedic Surgery, Chicago, IL United States, 2Purdue University,
Mechanical Engineering, West Lafayette, IN United States, 3Purdue University, Basic Medical Sciences, West
Lafayette, IN United States, 4Mercy Hospital, Orthopaedic Surgery, Cincinnati, OH United States

3:18 p.m. - 3:23 p.m.
Abstract: 447
Analyzis of PH, Hygrometry, and Relaxation Pressure in Lumbar Degeneratve Disc
Disease. Study for the Tools Validation and Comparaison between Normal and
Pathlogic Discs
T.P. Marnay1, G. Geneste1, P. Tropiano2, J. Zigler3
1Clinique du Parc, Spine Department, Castelnau le Lez, France, 2Marseille University, Hospital Nord
Orthopedie, Marseille, France, 3Texas Back Institute, Plano, TX, United States

3:24 p.m. - 3:30 p.m. Discussion

Biologics II
Moderators:  Hyun Bae, MD and Ashish Diwan, MD

3:30 p.m. - 3:35 p.m.
Abstract: 572
The Anabolic Effect of Plasma-mediated Ablation on the Intervertebral Disc:
Stimulation of Proteoglycan and IL-8 Production
K.T. Foley1, F.A. Kuelling2, J.J. Liu2, E. Liebenberg2, A.H. Sin2, J.C. Lotz2, A.Matsukawa3
1University of Tennessee, Department of Neurosurgery, Memphis, TN, United States, 2Orthopaedic Bioengineering Laboratory, UCSF, Department of Orthopaedic Surgery, San Francisco, CA, United States, 3Okayama
University School of Medicine, Department of Pathology and Experimental Medicine, Shikata, Japan

3:36 p.m. - 3:41 p.m.
Abstract: 281
Intervertebral Disc Repair Using Adipose Tissue-derived Stem and Regenerative
Cells: Experiments in a Canine Model
H-J. Meisel1, T. Ganey2, W.C. Hutton3, M. Hedrick4, B. Strem4
1Bergmannstrost Klinic, Halle, Germany, 2Atlanta Medical Center, Atlanta, GA, United States, 3Emory Spine Center, Atlanta, GA, United States, 4Cytori Therapeutics, San Diego, CA, United States

3:42 p.m. - 3:47 p.m.
Abstract: 125
Structured Co-culture of Adult Stem Cells and Nucleus Cells for Disc Regeneration
A. Allon1, R. Schneider1, J. Lotz1
1University of California San Francisco, Orthopaedic Surgery, San Francisco, CA United States

3:48 p.m. - 3:53 p.m.
Abstract: 374
A Finite Element Parametric Study of the Disc Nutrition
P. Tropiano1, C. Magnier2, O. Boiron3, T. Marnay4, V. Delplano3, S. Wending5, P. Chabrand5
1Université de la Méditerranée, Hopital Nord, Orthopaedic Surgery, Marseille, France, 2Institute of
Movement, Sciences CNRS UMR 6233,Aix-Marseilles University, Interdisciplinary Group of Osteoarticular
Biomechanics, Marseille, France, 3IRPHE CNRS UMR 6594, Aix-Marseilles University and Ecole Centrale of
Marseilles, Marseille, France, 4Clinique du Parc, Montpellier, France, 5Institute of Movement, Sciences
CNRS UMR 6233, Interdisciplinary Group of Osteoarticular Biomechanics, Aix-Marseilles University,
Marseille, France

3:54 p.m. - 4:00 p.m. Discussion

4:00 PM to 4:30 PM BREAK

4:30 PM to 6:00 PM WORLD CAFÉ

Program:  The challenges of life in the 21st century require us to find new ways to access the wisdom and intelligence inherent in groups both small and large.  SAS is offering a new, innovative program that will be based around challenging clinical case studies, called a World Café.  The world café is an intensive round table discussion program that discusses a series of challenging case studies that will allow participants to confer on treatment options and protocols.  After mixed rounds of discussion, the whole group gathers to share and explore emerging outcomes, insights and learnings.

Learning Objectives: 

• Participants will be able to learn from each other by listening together for patterns, insights, and deeper questions relating to their case study.
• By cross-pollinating ideas and sharing thoughts, collective discoveries and outcomes will be developed and will be meaningful to studies outcome.

Cervical Cases (45 min.)  CASE MODERATOR:  Jack Zigler, MD

• Table Moderators: S.Scott Blumenthal, MD;  Carl Lauryssen, MD;  Matthew Scott-Young, MD

Lumbar Cases (45 min.)  CASE MODERATOR:  Scott Kitchel, MD

• Table Moderators: Rick Guyer, MD;  J.C. LeHuec, MD, PhD; Tai Friesem, MD;  Manoj Krishna, MD

7:30 AM to 8:30 AM  TDR Challenges and Complications

Moderator:  Matthew Scott Young

Goals:  This Symposium will highlight complications and controversies surrounding lumbar disc replacement

• Can we accurately diagnose the source of back pain? Steven Garfin, MD 
• TDR:  Is wear an issue?  Richard Hall, Prof.
• TDR:  Biomechanics and the Facets – Same-Level; Adjacent Level:  Avinash Patwardhan, PhD
• Evaluating and Treating the Painful Lumbar TDR:  Robert Hes, MD
• Can Society afford TDR:  Rick Guyer, MD, PhD
• Discussion/Questions

8:30 AM to 9:00 AM  Break

9:00 AM to 10:45 AM Cervical TDR II

Cervical TDR:  Multi-Level
Moderators:  Steven Garfin, MD and Henry Halm, MD, PhD

9:00 a.m. - 9:05 a.m.
Abstract: 600
Multiple-level Cervical ADR: A Clinical and Radiographic Analysis of Sagittal Motion
Preservation at 2-5 Years
A. Rasouli1, R. Delamarter1, N. Ashraf1, L.E.A. Kanim1, B. Strenge1, H.W. Bae1, M. Kropf1
1The Spine Institute Santa Monica, Santa Monica, CA United States

9:06 a.m. – 9:11 a.m.
Abstract: 103
2-Level Cervical Disc Arthroplasty: One-year Clinical Results from 6 Centers in a
Prospective Randomized IDE Trial
R. Dryer1, J.K. Burkus2, M. Gornet3, T. Lanman4, B. Gunter5, I. Canavati6
1Central Texas Spine Institute, LLP, Austin, TX United States, 2Hughston Clinic, Columbus, GA United States,
3Orthopedic Center of St. Louis, Chesterfield, MO United States, 4St. John's Health Center, Santa Monica, CA United
States, 5Columbia Neurosurgical, Columbia, SC United States, 6Fort Wayne Neurological Center, Fort Wayne, IN
United States

9:12 a.m. - 9:17 a.m.
Abstract: 85
Cervical Total Disc Arthoplasty: The Effect of Preoperative MRI Modic Changes on
the Clinical and Functional Outcome
A. Kasis1, L. Marshman1, T. Friesem1
1University Hospital of NorthTees, Spinal Unit, Stockton-On-Tees, United Kingdom

9:18 a.m. - 9:24 a.m. Discussion

Cervical TDR:  Miscellaneous
Moderators:  Dom Coric, MD and Dan Riew, MD

9:25 a.m. - 9:30 a.m.
Abstract: 477
Facet Degeneration and Axial Pain in a Late Cervical Total Disc Replacement
L. Pimenta1,2, J. Lhamby2, J. Fratezi2, E. Coutinho2, L. Oliveira2
1UCSD, San Diego, CA United States, 2Instituto de Patologia da Coluna, São Paulo, Brazil

9:31 a.m. - 9:36 a.m.
Abstract: 166
Radiological Observations in the Cervical Spine Following Cervical Arthroplasty in
Minimum 24-month Follow-up: Bryan versus ProDisc-C
C.-K. Park1, R. Kyeong-Sik1
1The Catholic University of Korea, Neurosurgery, Seoul, Korea, Republic of

9:37 a.m. - 9:42 a.m.
Abstract: 302
Serum Metal Levels in Patients with Titanium Ceramic Composite Cervical Disc
Replacements
M.F. Gornet1, W. Ceola2,,J.K. Burkus3, A.K. Skipor4, J.J. Jacobs4
1The Orthopedic Center of St. Louis, Spine Research Center, St. Louis, MO, United States, 2Sprringfield Neurological Institute, Springfield, MO, United States  3The Hughston Clinic, Columbus, GA, United States, 4Rush University Medical Center, Chicago, IL, United States

9:43-9:49 Discussion

Cervical TDR:  Outcome Predictors
Moderators:  Manoj Krishna, FRCS, MCh (Ortho) and Rolando Garcia, MD

9:50 a.m. - 9:55 a.m.
Abstract: 100
Impact of Adverse Events on Outcome in Cervical Total Disc Replacement Trials
D.D. Ohnmeiss1, R.D. Guyer2, S.L. Blumenthal2, J.E. Zigler2, R. Rashbaum2
1Texas Back Institute Research Foundation, Plano, TX, United States, 2Texas Back Institute, Plano, TX, United
States

9:56 a.m. - 10:01 a.m.
Abstract: 549
CerviCore® Disc Replacement vs. Fusion for Single-level Cervical Radiculopathy:
Changes in Unemployment and Worker's Compensation
J.S. Fischgrund1, R. Garcia2, M.J. Gratch3, N.M. Wright4
1Michigan Orthopaedic Institute, Southfield, MI United States, 2Orthopedic Care Center, Aventura, FL United
States, 3Orthopaedic Specialty Center, Willow Grove, PA United States, 4Washington University School of
Medicine, Orthopaedic Surgery, St. Louis, MO United States

10:02 a.m. - 10:07 a.m.
Abstract: 90
Cervical Total Disc Arthroplasty: The Correlation between Centre Placement and
Clinical and Functional Outcome
A. Kasis1, R. Taranu1, L. Marshman1, T. Friesem1                       
1University Hospital of NorthTees, Spinal Unit, Stockton-On-Tees, United Kingdom

10:08 a.m. - 10:14 a.m. Discussion

Cervical TDR Motion
Moderators:  Vijay Goel, PhD and Michael Janssen, MD

10:15 a.m. - 10:20 a.m.
Abstract: 232
Effect of Preoperative Degeneration, Segmental Alignment and Surgical Technique
on Postoperative Segmental Alignment with the Bryan Cervical Disc Prosthesis
J.R. Walraevens1, J. Vander Sloten 1,  B. Liu2,, J. Goffin2
1KULeuven, Division of Biomechanics and Engineering Design, Heverlee, Belgium, 2KULeuven, UZ
Gasthuisberg, Leuven, Belgium

10:21 a.m. - 10:26 a.m.
Abstract: 197
Center of Rotation Analysis for DISCOVER Artificial Disc - Comparison of Finite
Element Analysis Results with Early Clinical Experience
M. Moumene1, C. Holy1, J. Harms2,
1DePuy Spine Inc., Raynham, MA, United States, 2Klinikum Karlsbad-Langensteinbach, Spine Surgery, Karlsbad,
Germany

10:27 a.m. - 10:32 a.m.
Abstract: 432
Effects of Disc Sizing and Adjacent Level Procedures on Instantaneous Axis of
Rotation in Cervical Total Disc Replacement
C.K. Demetropoulos1,H.N.Herkowitz1,  E.I. Francke2, A.P. Dooris3, H.A. Serhan3, J. Harms4
1William Beaumont Hospital, Orthopaedic Research, Royal Oak, MI United States, 2Pinnacle Orthopaedics and
Sports Medicine, Austell, GA United States, 3DePuy Spine, Research and Development, Raynham, MA United
States, 4Klinikum Karlsbad-Langensteinbach, Spine Surgery, Karlsbad, Germany

10:33 a.m. - 10:39 a.m. Discussion

10:45 AM to 11:00 AM AWARDS

11:00 AM to Noon  Nucleus/Annulus Nucleus Replacement
Moderators:  Constantine Demetropoulos, PhD and Christopher Yeung, MD

11:00 a.m. - 11:05 a.m.
Abstract: 494
PDN Nucleus Replacement: 9 Year Follow-up Experiences
L. Olivera2, L.Pimenta1,2, J. Lhamby2, T. Schaffa2, J. Fratezi2, E. Coutinho2
1UCSD, San Diego, CA, United States, 2Instituto de Patologia da Coluna, São Paulo, Brazil

11:06 a.m. - 11:11 a.m.
Abstract: 279
Restoration of Motion and Disc Height Following Cadaveric Implantation of a Novel
Allograft-filled Conformable Nucleus Replacement
A.L. Freeman1, B.P. Beaubien1, E.J. Semler2, K.M. Roche3
1Gustilo Medical Education Center, Minneapolis, MN United States, 2Musculoskeletal Transplant Foundation,
Edison, NJ United States, 3Spineology, St. Paul, MN United States

11:12 a.m. - 11:17 a.m.
Abstract: 154
A New Polymerizing Gel for Injection in the Nucleus Pulposus - Evaluation of the
Biomechanical Behavior and the Extrusion Risk
H.-J. Wilke1, H. Fuchs1, F. Heuer1, J. Mollenhauer2, K. Benz2, H. Wurst2, G. Achatz3
1University of Ulm, Institute of Orthopaedic Research and Biomechanics, Ulm, Germany, 2University of
Tübingen, NMI Naturwissenschaftliches und Medizinisches Institut, Reutlingen, Germany, 3Armed Forces
Hospital Ulm, Department of Orthopaedic and Trauma Surgery, Ulm, Germany

11:18 a.m. - 11:23 a.m.
Abstract: 535
Multi-directional Flexibility Properties and Abrasion Assessment of an in situ Cured
Polyurethane for Nucleoplasty Reconstruction. An in-vitro Human Cadaveric Model
B.W. Cunningham1, N. Hu1, J. Kikkawa1, J. Klunk1, J.D. Gordon1, P.C. Mcafee2
1St. Joseph Medical Center, Orthopaedic Spinal Research Laboratory, Towson, MD United States, 2St. Joseph
Medical Center, Scoliosis and Spine Center, Towson, MD  United States

11:24 a.m. - 11:29 a.m. Discussion

Annular Repair
Moderator:  Kenneth Pettine, MD

11:30 a.m. - 11:35 a.m.
Abstract: 450
Biomechanical Evaluation of the Lumbar Spine after Anular Repair
N. Inoue1, A.A. Espinoza Orías1, R. Natarajan1, H.S. An1, S. Kode1,2, M. Gudipally1,2, T. Takigawa1,3, S.L.Griffith4
1Rush University Medical Center, Orthopaedic Surgery, Chicago, IL, United States, 2University of Illinois at
Chicago, Bioengineering, Chicago, IL, United States, 3Okayama University, Orthopaedic Surgery, Okayama,
Japan, 4Anulex Technologies, Minnetonka, MN, United States

11:36 a.m. - 11:41 a.m.
Abstract: 467
Acute Pull-out Resistance of Bone Anchor Elements Used for Anular Repair
S.L. Griffith1, D. Brady1, L. Wales1, B. Dukart1, I. Bentley1, R. Houfburg1, J. Farrell1
1Anulex Technologies, Minnetonka, MN, United States

11:42 a.m. - 11:47 a.m.
Abstract: 546
Multidirectional Flexibility and Fatigue Assessment of the Anulex RimClose System
Using an in-vitro Human Cadaveric Model
N. Hu1, B.W. Cunningham1, J. Kikkawa1, S.L. Griffith2, P.C. Mcafee3
1St. Joseph Medical Center, Orthopaedic Spinal Research Laboratory, Towson, MD United States, 2Anulex
Technologies Inc., Minnetonka, MN United States, 3St. Joseph Medical Center, Scoliosis and Spine Center,
Towson, MD United States

11:48 a.m. - 11:53 a.m.
Abstract: 526
BARRICAID ARD® (Anular Reconstruction Device) in the Treatment of Lumbar Disc
Herniations: A Prospective Study
M. Vilendecic1, D. Ledic2, S. Eustacchio3, P. Varga4, M. Gorensek5
1Klinicka Bolnica 'Dubrava', Zagreb, Croatia, 2KBC Rijeka, Rijeka, Croatia, 3University of Graz, Medical
School, Graz, Austria, 4National Center for Spinal Disorders, Budapest, Hungary, 5University Medical Centre
Ljubljana, Ljubljana, Slovenia

11:54 a.m. - 11:59 a.m. Discussion

NOON to 2:00 PM INDUSTRY WORKSHOPS

2:00 PM TO 3:45 PM Posterior Dynamic Stabilization and Arthroplasty

Facet Replacement:  Kinematics
Moderator(s): Avinash Patwardhan, MD and John Sherman, MD

2:00 p.m. - 2:05 p.m.
Abstract: 247
ACADIA™ Facet Replacement System Lumbar Kinematics: A Comparison of Finite
Element, in vitro and in vivo Investigations
R.F. Dryer1, V.K. Goel2, J.J. Regan3, C.A. Hartjen4, D.J. DiRisio5
1Central Texas Spine Institute, Austin, TX United States, 2Engineering Center for Orthopaedic Research
Excellence (ECORE), Departments of Bioengineering and Orthopaedic Surgery, Colleges of Engineering and
Medicine, University of Toledo, Toledo, OH United States, 3St. John's Hospital, Santa Monica, CA United States,
4Greater Baltimore Medical Center, Baltimore, MD United States, 5Albany Medical Center, Albany, NY United States

2:06 p.m. - 2:11 p.m.
Abstract: 503
Kinematics of Total Facet Replacement (TFAS-TL™) with Total Disc Replacement
R.M. Havey1,2, L.I. Voronov1,2, A.G. Patwardhan1,2, G. Carandang2, D. Zindrick2, S.G. Sjovold3, M. Funk3, D.M. Rosler3
1Loyola University Chicago, Maywood, IL United States, 2Edward Hines Jr. VA Hospital, Hines, IL United States, 3Archus Orthopedics, Inc., Redmond, WA United States

2:12 p.m. - 2:17 p.m.
Abstract: 559
Biomechanical Evaluation of Total Lumbar Joint Replacement: Facet Replacement
with Nucleus Replacement
D.M. Rosler1, S.L. Rogers1, S. Vadapali1, S. Seme2, L.I. Voronov3,4, A.M. Cohen5, R.M. Harrington5, R.P.
Ching5
1Archus Orthopedics, Inc., Redmond, WA United States, 2Raymedica, Minneapolis, MN, United States, 3Edward
Hines Jr. VA Hospital, Hines, IL, United States, 4Loyola University Chicago, Maywood, IL, United States,
5University of Washington, Applied Biomechanics Laboratory, Seattle, WA, United States

2:18 p.m. - 2:25 p.m. Discussion

Dynamic Stabilization:  Outcomes
Moderators:  Gunnar Andersson, MD and Anthony Fabrizi, MD

2:26 p.m. - 2:31 p.m.
Abstract: 489
X STOP - Different Outcomes for Different Indications
A. Tuschel1, M. Meissl1, C. Eder1, S. Becker1, M. Ogon1
1Orthopaedic Hospital Vienna - Speising, Spine Departement, Wien, Austria

2:32 p.m. - 2:37 p.m. Discussion

2:38 p.m. - 2:43 p.m.
Abstract: 179
Does an Interspinous Device (COFLEX™) Improve the Outcome of Decompressive
Surgery in Lumbar Spinal Stenosis? 2-year Follow up of a Prospective Case Control
Study of 60 Patients
A. Richter1, C. Schütz1, H. Halm1
1Klinikum Neustadt, Department of Spine Surgery and Scoliosis Center, Neustadt i.H., Germany

2:44 p.m. - 2:51 p.m. Discussion

Dynamic Stabilization:  Pedicle Based
Moderators:  Dilip Sengupta, MD, Dr. Med and Donna Ohnmeiss, PhD

2:52 p.m. - 2:57 p.m.
Abstract: 504
Evaluation of Hybrid Posterior Dynamic Stabilization (ISOBAR TTL): A Two Year
Follow-up
A.E. Castellvi1, W. Hudson1, D.H. Clabeaux1
1Florida Orthopaedic Institute, Tampa, FL United States

2:58 p.m. - 3:03 p.m.
Abstract: 131
Paraspinal Muscle Changes after Dynamic Stabilization and Lumbar Fusion
T.-A. Jahng1, K.Y. Moon1, C.K. Chung1, H.-J. Kim2
1Seoul National University College of Medicine, Neurological Surgery, Jongno-Gu, Seoul, Korea, Republic of,
2Seoul National University Bundang Hospital, Neurological Surgery, Seongnam, Korea, Republic of

3:04 p.m. - 3:09 p.m.
Abstract: 395
The Effectiveness of Posterior Dynamic Stabilization Using IsoBar TTL Dynamic
Rods Combined with Decompression as a Treatment for Elderly Patients with
Unstable Grade I L4-5 Spondylolisthesis and Spinal Stenosis: A Comparison with
Decompression Alone
J.H. Shim1, C.K. Park1, D.H. Lim1, D.C. Lee1, D.H. Kim1, J.K. Kim1, J.H. Hwang1
1The Leon Wiltse Memorial Hospital, Neurosurgery, Suwon, Korea, Republic of

3:10 p.m. - 3:17 p.m. Discussion

Dynamic Stabilization:  Adjacent Segment
Moderators:  Randall Dryer, MD and Jack Zigler, MD

3:18 p.m. - 3:23 p.m.
Abstract: 589
Biomechanics of "Topping Off" Lumbar Fusion with Dynamic Rods
B.C.R. Lazaro1, P.M. Reyes1, A.G.U. Sawa1, A.S. Yaqoobi1, N.R. Crawford1
1Barrow Neurological Institute, Spinal Biomechanics, Phoenix, AZ United States

3:24 p.m. - 3:29 p.m.
Abstract: 228
Preventive Effects of Soft Stabilization for an Adjacent Segment Breakdown of the
Posterior Lumbar Interbody Fusion: Minimum 5-year Follow-up Study
N. Kawakami1, A. Nohara1, S. Imagama2, K. Miyasaka1, T. Ohara1, T. Tsuji1, M. Sato1, K. Ito1
1Meijo Hospital, Department of Orthopedics & Spine Surgery, Nagoya, Japan, 2Nagoya University School of
Medicine, Department of Orthopedics Surgery, Nagoya, Japan

3:30 p.m. - 3:35 p.m.
Abstract: 601
Is There a Need for Dynamic Stabilization of the Adjacent-segment to Fusion in
Multilevel Degenerative Disc Disease?
D.K. Sengupta1
1Dartmouth-Hitchcock Medical Center, Orthopedics, Dartmouth, NH United States

3:36 p.m. - 3:43 p.m.  Discussion

3:45 PM to 4:30 PM Innovataive Techniques Lightning Round
Moderators:  Jeff Goldstein, MD; Jack Zigler, MD

3:45 p.m. - 3:48 p.m.
Abstract: 332
BoneWelding® Technology: Enhanced Primary Stability for Load Bearing Spinal
Implants
J. Mayer1, A. Wenger1, P. Seiler1, M. Röllinghoff2, S. Saladin2
1WW Technology AG, Schlieren, Switzerland, 2ETH Zurich, Department of Mechanical and Process
Engineering, Zurich, Switzerland

3:49 p.m. - 3:52 p.m.
Abstract: 668
A Randomised Placebo-Controlled Trial of Intradiscal Methylene Blue Injection for
the Treatment of Chronic Discogenic Low Back Pain
B. Peng1
1Institute of Spinal Surgery of Armed Police Force, General Hospital of Armed Police Force, Department of
Spinal Surgery, Beijing, China

3:53 p.m. - 3:56 p.m.
Abstract: 561
Minimally Invasive AxiaLIF L5-S1 Interbody Fusion for Anterior Column Support at
the End of a Long Segment Fusion: 1 Year Clinical and Functional Outcome
N. Anand1, R. Rosemann1, E. Baron1
1Cedars Sinai Medical Center, Institute for Spinal Disorders, Los Angeles, CA United States

3:57 p.m. - 4:00 p.m.
Abstract: 202
Biomechanical Comparison of an Interspinous Distraction Device with a Novel
Interlaminar Dynamic Stabilization System in the Lumbar Spine
J. Rice1, M. Mac Millan1, , B. Conrad1
1University of Florida, Dept. Orthopaedics, Gainesville, FL United States

4:01 p.m. - 4:04 p.m.
Abstract: 537
A Study of the Static and Dynamic Biomechanical Properties of Guided Oblique
Lumbar Interbody Fixation in a UHMWPE Vertebrectomy Model
S. St. Clair1, K. Siemionow1, I. Lieberman1
1Cleveland Clinic, Orthopaedics, Cleveland, OH United States

4:05 p.m. - 4:08 p.m.
Abstract: 566
The Use of Posterior Minimally Invasive Approach for Corpectomy
C.W.Kim1, L.J. Gottschalk2, G.J. Regev3, S.R. Garfin3, W.R. Taylor4
1MISI at Alvarado Hospital, San Diego, CA, United States, 2University of California San Diego, San Diego, CA, United States, 3University of California San Diego, Orthopaedics, San Diego, CA, United States, 4University of California San Diego, Neurological Surgery, San Diego CA, United States

4:09 p.m. - 4:12 p.m.
Abstract: 514
Structural Kyphoplasty: A Novel Approach to Vertebral Fracture Repair Using
Stackable Wafers
A. Hummel1, H. Sandhu2, J.P. Johnson3, K. Remley4, W. Olan5
1Kreiskrankenhous Worth an der Donau, Woerth an der Donau, Germany, 2Hospital for Special Surgery,
New York, NY United States, 3Cedars Sinai Medical Center, Los Angeles, CA United States, 4Center for Diagnostic
Imaging, Carmel, IN United States, 5Suburban Hospital, Bethesda, MD United States

4:13 p.m. - 4:16 p.m.
Abstract: 505
Initial Clinical Experience With a Novel Vertebral Augmentation Device for Painful
Vertebral Compression Fractures
J.E. Block1, L. Rosales Olivarez2, A. Reyes Sánchez2, A. Alpizar Aguirre2, B. Zárate Kalfopulos2, H.A. Stubbs3
Jon E. Block, Incorporated, San Francisco, CA, United States, 2Instituto Nacional de Rehabilitacion/Ortopedia, Division de Cirugia Especial-Columna Vertebral, Mexico City, 3Private Practice, Oakland, CA, United States

4:17 p.m. - 4:20 p.m.
Abstract: 25
Primary Clinical and Radiological Results Using a Hybrid Dynamic System for Spinal
Fusion
 E. Ashkenazi1, M. Millgram1, N. Rand1, Y. Floman1, O. Keynan2
1Assuta Hospital, Israel Spine Center, Tel Aviv, Israel, 2Tel Aviv Medical Center, Orthopedic, Tel Aviv, Israel

4:21 p.m. - 4:24 p.m.
Abstract: 429
Development of a 4-Axis Load Sensing ALIF Spacer
C.K. Demetropoulos1, H.N. Herkowtiz1, C.R. Morgan2, D.K. Sengupta3
1William Beaumont Hospital, Orthopaedic Research, Royal Oak, MI, United States, 2R. A. Denton, Inc.,
Rochester Hills, MI United States, 3Dartmouth-Hitchcock Medical Center, Orthopaedic Surgery, Lebanon, NH, United
States

4:25 p.m. - 4:30 p.m. Discussion

CLOSE SAS09