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Proceedings of the 26th Annual Meeting of the NASS

02 November 2011 - 05 November 2011

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366 Articles:

Wednesday, November 2, 2011
General Session: Best Papers
Article Title Author(s) Pages
Functional and Quality of Life Outcomes in Geriatric Patients with Type II Odontoid Fracture: One-Year Results from the AOSpine North America Multicenter GOF Prospective Study

Branko Kopjar, Alexander Vaccaro, Michael Fehlings, Jens Chapman, Christopher Shaffrey, Paul Arnold, Ziya Gokaslan, Roger Hartl, Darrel Brodke, John France, S. Tim Yoon, Mark Dekutoski, Rick Sasso, Christopher Bono et al. S1
No Orthosis is Equivalent to TLSO for the Treatment of Thoracolumbar Burst Fractures without Neurologic Injury: Results from a Multicenter RCT

Christopher Bailey, Marcel Dvorak, Melissa Nadeau, Allan Aludino, M. Patricia Rosas-Arellano, Michael Boyd, Scott Paquette, Brian K. Kwon, John France, Kevin R. Gurr, Stewart Bailey, Charles Fisher et al. S1-S2
Incidence and Impact of Acute Adverse Events in Patients with Traumatic Spinal Cord Injury

Antoinette Cheung, John Street, Vanessa Noonan, Lydia Cartar, Marcel Dvorak et al. S2
Preclinical Study of Human Allograft Amniotic Membrane as a Barrier to Epidural Fibrosis in the Early Wound of a Postlaminectomy Rat Model

Andrew Mahar, R. Todd Allen, Jennifer Massie, Frank Phillips S2-S3
Annulus Fibrosus Cells Interact with Neuron-like Cells to Modulate Production of Growth Factors and Cytokines in Symptomatic Disc Degeneration

Joo Han Kim, Hong Joo Moon, James Kang S3
In Situ Placement of High-Dose rhBMP-2 within Spine Tumors Slows Tumor Growth and Decreases Onset to Paralysis in a Rat Model of Metastatic Breast Cancer

Camilo Molina, Rachel Sarabia-Estrada, Ziya Gokaslan, Jean-Paul Wolinsky, Ali Bydon, Daniel Sciubba et al. S3-S4
Why Don’t Annular Defects Heal? Does Interposed Nucleus Pulposus Prevent Healing? An In Vivo Histological Study

Isaac Moss, Frank Phillips S4
Focused Paper Presentations: Tumor & Vertebral Compression Fractures
Article Title Author(s) Pages
Surgical Outcome of Spinal Hepatocellular Carcinoma Metastases

Chi Heon Kim, Chun Kee Chung, Tae-Ahn Jahng S4-S5
Surgical Outcomes of a Posterior Approach for Large Ventral Intradural Extramedullary (IDEM) Spinal Cord Tumors

Chi Heon Kim, Chun Kee Chung S5
Kyphoplasty for the Treatment of Malignant Vertebral Compression Fractures Caused by Metastases

Zhiyong Sun S5-S7
Spinal Cauda Compression by Metastatic Tumors of the Lumbosacral Junction and Sacral Spine

Nasir Quraishi, Kyriakos Giannoulis S7
Hospital Outcomes of VCF Treatment with Kyphoplasty and Vertebroplasty in the United States

Jay Zampini, Kevin Ong, Edmund Lau, Av Edidin, Steven Kurtz et al. S7-S8
Comparison of Unilateral Versus Bilateral Kyphoplasty in Cancer-Related Vertebral Fractures

Ioannis Papanastassiou, Mohammed El Eraky, Kamran Aghayev, Frank Vrionis S8
The Use of Artificial Bone Vertebral Models in the Mechanical Assessment of Vertebroplasty In Vitro

Vishal Borse, Nikil Kapur, Jake Timothy, Richard Hall S8-S9
Focused Paper Presentations: Complications
Article Title Author(s) Pages
Prevalence of Erectile Dysfunction in Patients under 50 Years of Age with Fracture-Unrelated Lumbar Spine Disease Requiring Surgical Decompression: A Prospective Follow-Up Study

Mashfiqul Siddiqui, Benedict Peng, Nidu Maran Shanmugam Balakrishnan, William Yeo, Stephanie Fook-Chong, John Chen, Chang Ming Guo, Benjamin Tow, Seang-Beng Tan, Wai-Mun Yue et al. S9
Burying One’s Head in the Sand: Are We Underestimating the Significance of Pedicle Screw Misplacement?

Adam Wollowick, Vishal Sarwahi, Jonathan Horn, Terry Amaral, Beverly Thornhill, Preethi Kulkarni, Melanie Gambassi et al. S9-S10
Failure of Pelvic Fixation After Long Construct Fusions in Adult Deformity Patients; Clinical and Radiographic Risk Factors

Woojin Cho, Jonathan Mason, Adam Wilson, Christopher Shaffrey, Francis Shen, Adam Shimer, Wendy Novicoff, Kai-Ming Fu, Joshua Heller, Vincent Arlet et al. S10
Early Results and Complications of Posterior-Based Osteotomies in Patients with Previous Spinal Fusions

Stephen Lewis S10-S11
Prospective Study on Sexual Function and Dysfunction in Lumbar TDR

Rolando Garcia S11
Delayed Surgery in Lumbar Spine Fractures: Do Severe Cauda Equina Lesions (CE) Recover?

Mehandi Hassan Ansari, Mihir Bapat, Prasanna Rathi, Kshitij Chaudhary S11-S12
Does Resection of the Posterior Longitudinal Ligament Impact the Incidence of C5 Palsy After Cervical Corpectomy Procedures? A Review of 459 Consecutive Cases

Ahmad Nassr, Jason Eck, Barrett Woods, Ravi Ponnappan, William Donaldson, James Kang et al. S12
Focused Paper Presentations: Evidence-Based Medicine
Article Title Author(s) Pages
Can Decision-Tree Algorithm and Full Paper Improve the Inter-Observer Agreement in Level of Evidence Determination, Compared to Reading Abstract Alone?

Dilip Sengupta, James Sanders, Douglas Burton S12-S13
Regional Variations in Lumbar Fusion Performed for the Top Ten Primary Lumbar Diagnoses

Stephanie Ngo, Jessica Ellerman, William Pannell, David Savin, Jeffrey Wang et al. S13
Use of an Ambulatory Surgery Center for Outpatient Spine Surgery

William Lavelle, Thomas Mroz, Michael Steinmetz, Isador Lieberman S13
Survivorship Analysis of Adjacent Segment After Lumbar Spinal Fusion: Comparison of PLIF and PLF

Jae-Chul Lee, Jae-Wan Soh, Ho-hyoung Lee, Byung-Joon Shin S13-S14
Moved to Value Award Session on Friday, November 4, 3:05–3:35p.m.

S14
Patient Recruitment into Acute Spinal Cord Injury Clinical Trials of Early Therapeutic Interventions: How Many Patients Can Really Be Enrolled?

Robert Lee, Marcel Dvorak, Brian K. Kwon S14
Cost-Effectiveness Analysis of a Reduction in Diagnostic Imaging in Degenerative Spinal Disorders

Raja Rampersaud, Joanne Kim, Joyce Dong, Stacey Brener, Peter Coyte et al. S14-S15
Focused Paper Presentations: Disc Arthroplasty
Article Title Author(s) Pages
National Utilization Trends of Cervical Artificial Disc Replacement Compared to Anterior Cervical Fusion

Sheeraz Qureshi, Steven Koehler, Andrew Hecht S15
Investigating the Potential Effect of “Euphoric Bias” for the New Technology on Results of Randomized Lumbar Total Disc Replacement Trials

Donna Ohnmeiss, Scott Blumenthal, Richard Guyer S15-S16
Cost-Effectiveness of Single-Level Cervical Disc Arthroplasty

Peter McCombe, Paul Mernagh, William Sears S16
Multicenter, Prospective, Randomized, Controlled Investigational Device Exemption Study Comparing Mobi-C® Cervical Artificial Disc to Anterior Fusion in the Treatment of Symptomatic Cervical Degenerative Disc Disease

Donna Ohnmeiss, Michael Hisey, Hyun Bae, Reginald Davis, Gregory Hoffman, Kee Kim, Pierce Nunley, Daniel Peterson et al. S16-S17
The Preoperative Patient Characteristics and Their Influence on Clinical Outcome Measures Following Cervical Disc Replacement: Do They Have Any Influence?

Sandesh Lakkol, Razvan Taranu, Guru Reddy, Manoj Krishna, Chandra Bhatia, Tai Friesem et al. S17
Compliant Artificial Disc Replacement: In Vivo Implant Stability and Osseointergration in an Animal Model

Scott Johnson, Thomas Steffen, Brian Freeman S17-S18
A Prospective, Randomized Clinical Investigation of the Porous Coated Motion (PCM) Artificial Cervical Disc: Two-Year Results from the US IDE Study

Kelli Howell, Frank Phillips, Andrew Cappuccino, Fred Geisler, Christopher Chaput, John DeVine, Chris Reah, Kye Gilder, Paul McAfee et al. S18
Focused Paper Presentations: Deformity
Article Title Author(s) Pages
Revision Surgery After Instrumentation and Fusion in Adolescent Idiopathic Scoliosis

Kelley Banagan S18-S19
Large Dose of Tranexamic Acid Reduces Intraoperative Blood Loss in Patients Undergoing Spine Correction Surgery: Is it Safe and Effective?

Jingming Xie, Tao Li, Yingsong Wang, Zhi Zhao, Ying Zhang, Zhendong Yang, Ni Bi, Hong Chen et al. S19
Spine-Related Symptoms in Young Adults After Surgical Treatment of Adolescent Idiopathic Scoliosis

Leah Carreon, Jonathon Spanyer, Charles Crawford, Chelsea Canan, Lauren Burke et al. S19
The Prevalence of Abnormal Preoperative Neurologic Exam in Scheuermann’s Kyphosis: Correlation with X-Ray, MRI and Surgical Outcome

Woojin Cho, Lawrence Lenke, Keith Bridwell, Guangxun Hu, Jacob Buchowski, Ian Dorward, Joshua Pahys, Samuel Cho, Matthew Kang, Lukas Zebala, Linda Koester et al. S20
Spinal Deformity in Marfan Versus AIS: Learning from the Differences

Joseph Gjolaj, Paul Sponseller, Suken Shah, Peter Newton, John Flynn, Baron Lonner, Amer Samdani, Michelle Marks, Philip Neubauer, Tracey Bastrom et al. S20
Incidence, Risk Factors and Clinical Outcome of Proximal Junctional Kyphosis for Patients with Adult Idiopathic Scoliosis: Minimum Five-Year Follow-Up

Complex Spine Study Group, Mitsuru Yagi, Akilah King, Oheneba Boachie-Adjei S20-S21
Kyphosis Restoration or Maintenance in Patients with Lenke Type I Scoliosis Treated by Pedicle Screw Construct: Is it Really Impossible by Using 5.5mm Titanium Rods?

Cagatay Ozturk, Ahmet Alanay, Azmi Hamzaoglu S21
Thursday, November 3, 2011
General Session: Best Papers
Article Title Author(s) Pages
Comparison of Adverse Events and Disclosures in the Original rhBMP-2 Trials with FDA Data and Subsequent Publications

Eugene Carragee, Bradley Weiner, Eric Hurwitz S21-S22
Infection Risk for Primary and Revision Instrumented Lumbar Spine Fusion in the Medicare Population

Steven Kurtz, Edmund Lau, Kevin Ong, Leah Carreon, Todd Albert, Steven Glassman et al. S22
Preoperative Vitamin D Status in Adults Undergoing Spinal Fusion

Jacob Buchowski, Geoffrey Stoker, Keith Bridwell, Lawrence Lenke, K. Daniel Riew, Lukas Zebala et al. S22-S23
Disparities Based on Insurance Status in the Outcomes After Surgery for Acute Spinal Cord Injury in the United States, 2005-2008

Ali Bydon, Hormuzdiyar Dasenbrock, Timothy Witham, Ziya Gokaslan S23
Prospective, Randomized Study of Surgical Site Infections with the Use of Perioperative Antibiotics for 24 Hours Versus the Duration of a Drain After Spinal Surgery

Pedro Ricart-Hoffiz, Richelle Takemoto, Justin Park, Tate Andres, Christian Hoelscher, Jeffrey Goldstein, Jeffrey Spivak, John Bendo, Thomas Errico, Baron Lonner et al. S23
Does Provocative Discography Cause Clinically Important Injury to the Lumbar Intervertebral Disc? A Ten-Year Matched Cohort Study

Eugene Carragee, Jason Cuellar, Eric Hurwitz, John Carrino, Richard Herzog et al. S23-S24
Do Epidural Steroid Injections Affect the Outcome of Patients Treated for Lumbar Stenosis? A Subgroup Analysis of the SPORT

Christopher Kepler, Kris Radcliff, Alan Hilibrand, Wenyan Zhao, Jon D. Lurie, Tor Tosteson, Jeffrey Rihn, Todd Albert, James Weinstein et al. S24
The Spine Journal Outstanding Paper Awards Presentations
Article Title Author(s) Pages
Utilization Characteristics of Spinal Interventions

Zack Abbott, Kavita Nair, Richard Allen, Venu Akuthota S25
Morbidity and Mortality of Major Adult Spinal Surgery: A Prospective Cohort Analysis of 942 Consecutive Patients

John Street, Brian Lenehan, Christian DiPaola, Michael Boyd, Charles Fisher, Brian Kwon, Scott Paquette, Y. Raja Rampersaud, Marcel Dvorak et al. S25-S26
Injection of AAV2-BMP2 and AAV2-TIMP1 into the Nucleus Pulposus Slows the Course of Intervertebral Disc Degeneration by MRI, Histological, Serum Biochemical, and Biomechanical Criteria

Steven Leckie, Bernard Bechara, Robert Hartman, Gwendolyn Sowa, Barrett Woods, Paulo Coelho, William Witt, Qing Dong, Brent Bowman, Kevin Bell, Nam Vo, Bing Wang, James Kang et al. S26
Cost-Utility of Lumbar Decompression with or without Fusion for Patients with Symptomatic Degenerative Lumbar Spondylolisthesis

Salin Kim, Soroush Mortaz, Peter Coyte, Y. Raja Rampersaud S26-S27
The Development of a Model for Translation of the Neck Disability Index to Utility Scores for Cost-Utility Analysis in Cervical Disorders

Shawn Smith Richardson, Sigurd Berven S27
Concurrent Session: Deformity
Article Title Author(s) Pages
Proximal Junctional Kyphosis in Adults Following Long Posterior Spinal Fusion: Comparison between Two Different Construct at the Upper End of the Construct

Hamid Hassanzadeh, Sachin Gupta, Amit Jain, Mostafa El Dafrawy, Richard Skolasky, Khaled Kebaish et al. S27
The Limited Benefit of Coronal Cobb Angle Correction in the Setting of Adult Spinal Deformity: A Health Related Quality of Life Assessment on Two-Year Outcomes

Benjamin Ungar, Virginie Lafage, Frank Schwab, Benjamin Blondel, Justin Smith, Jason Demakakos, Keith Bridwell, Steven Glassman, Christopher Shaffrey et al. S28
Radiographic and Clinical Outcomes of Posterior Spinal Fusion for Idiopathic Scoliosis in African Patients: A Comparison of All Pedicle Screw Versus Hybrid Instrumentation

Complex Spine Study Group, Han Jo Kim, Oheneba Boachie-Adjei, Francisco Perez-Grueso, Baron Lonner, Kenneth Paonessa, W. Fred Hess, Ferran Pellise, Munish Gupta, Matthew Cunningham et al. S28
Predictors of Long-Term SRS Total Scores in Patients with Adolescent Idiopathic Scoliosis Treated Surgically

Leah Carreon, Jonathon Spanyer, Steven Glassman, Lauren Burke, Chelsea Canan, Charles Crawford et al. S28-S29
Clinical Results & Functional Outcome in Adult Patients Following Revision Surgery for Spinal Deformity Correction: Patients Age 65 Years & Older Versus Younger than 65 Years

Hamid Hassanzadeh, Amit Jain, Mostafa El Dafrawy, Richard Skolasky, Michael Ain, Khaled Kebaish et al. S29
Preoperative Autologous Blood Donation Results in More Transfusions in the Surgical Treatment of Adolescent Idiopathic Scoliosis

Lukas Zebala, Lawrence Lenke, Keith Bridwell, Jacob Buchowski, Brenda Sides et al. S29-S30

366 Articles: