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Oral Presentations

2010 AANS Annual Meeting Philadelphia, Pennsylvania May 1–5, 2010

database to identify patients who had undergone noncontiguous anterior cervical fusion. Baseline characteristics and postoperative variables were evaluated. Primary outcome was the presence of symptomatic degeneration at the intermediate segment. Results: Of 2107 total cases, we identified 22 cases of noncontiguous anterior cervical fusion. No patient was found to have symptomatic ASD at the intervening level during the follow-up period. Postoperatively, of 17 patients, neurological improvement was seen in 13 and no change in 4. Overall symptomatic outcome as

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Degeneration via XLIF Jody A. Rodgers , MD, FACS (Spine Midwest, Inc.); W.B. Rodgers , MD , and Edward J. Gerber 3 2011 30 3 A22 A22 2011 Introduction: The XLIF approach provides a minimally disruptive alternative to anterior column access that allows for large graft placement, disk height restoration, and indirect decompression, while avoiding posterior scar tissue from the previous procedure. Results of ASD treated with XLIF are presented. Methods: Of our single-site consecutive series of 932 XLIF patients, 276

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spinal deformity (ASD) remains a challenge for the spinal surgeon. While minimally invasive surgery (MIS) has many favorable attributes that would be of great benefit for the ASD population, improvements in lordosis and sagittal balance have remained elusive using MIS an approach. This report describes the evolution of an MIS method for treating ASD with attention to sagittal correction. Methods: Over an 18 month period 25 patients with thoracolumbar scoliosis were treated surgically. The mean patient age was 72 years, with 68% females. Patients were treated with

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adjacent segment disease (ASD) in the cervical spine. Methods: 888 patients received ACDFs for symptomatic degenerative disease of the cervical spine over the past 22 years at our institution. Of these, 108 patients received repeat ACDF surgeries due to symptomatic ASD. 77 received revision surgeries anteriorly, and 31 received posterior surgeries. Pre, intra, peri, and post-operative data were collected via clinical notes and patient interviews. Patients were followed up for an average of 111.8±76.5 months after the first ACDF. Results: In general, patients

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Association of Neurological Surgeons 2013.4.FOC-LSRSABSTRACTS Oral Presentation Abstracts Paper 47. Age, Sagittal Deformity and Operative Correction are Risk Factors for Proximal Junctional Failure (PJF) Following Adult Spinal Deformity (ASD) Surgery Robert Hart , MD , Richard Hostin , MD , Themistocles Protopsaltis , MD , Shay Bess , MD , Frank Schwab , MD , Virginie Lafage , PhD; , Praveen Mummaneni , MD , Christopher Ames , MD , Christopher Shaffrey , MD , Justin

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remains stable comparing 3 and 12-month results. Neurosurg Focus Neurosurgical Focus FOC 1092-0684 American Association of Neurological Surgeons 2014.3.FOC-DSPNABSTRACTS Abstract Outcomes Award 103. Two Year Prospective, Multicenter Analysis of Consecutive Adult Spinal Deformity (ASD) Patients Demonstrates Higher Fusion Grade, Lower Implant Failures and Greater Improvement in SRS-22r Scores for Patients Treated with Recombinant Human Bone Morpho Kai-Ming G. Fu , MD PhD , Eric Klineberg , MD , Shay

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between the two forms of treatment emerge. Neurosurg Focus Neurosurgical Focus FOC 1092-0684 American Association of Neurological Surgeons 2015.3.FOC-DSPNABSTRACTS 103. A Prospective, Multi-Center Assessment of the Best Versus Worst Clinical Outcomes for Adult Spinal Deformity (ASD) Surgery Justin S. Smith , MD PhD , Christopher I. Shaffrey , MD FACS , Virginie Lafage , PhD , Frank Schwab , MD, PhD , Themistocles Protopsaltis , MD , Eric Klineberg , MD , Munish

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Association of Neurological Surgeons. You may not sell, republish, or systematically distribute any published materials without written permission from JNSPG. 2015 Introduction The neurologic complication rate following complex adult spinal deformity surgery (ASD) has not been ascertained in any prospective, multicenter, observational study. Here, we compare preoperative lower extremity motor scores (LEMS) to 6 month postoperative scores. Methods 276 complex ASD patients from 15 sites worldwide were enrolled in this prospective, multicenter

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Lindsay Tetreault, Ahmed Ibrahim, Pierre Côté, Anoushka Singh and Michael G. Fehlings

segments, level of max compression, compression ratio, shape of OPLL lesion, cervical alignment, range of motion Surgical factors: surgical approach, technique, no. of operated segments, no. of stages, fusion, operative time, EBL Different types of surgical materials (e.g., drills, grafting material), neuromonitoring Outcome Postop complications: nerve root palsy, axial pain, surgical, dysphagia, infection, instability, systemic Heterotopic ossification, progression of myelopathy, ASD Study design KQ1: cohort studies designed to evaluate prognostic

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ABSTRACTS Abstracts 619. Development of a Preoperative Predictive Model for Intra- or Peri-operative Major Complications with High Accuracy Validated with 558 ASD Patients Christopher Pearson Ames , MD, FAANS , Justin Scheer , BS , Justin Smith , MD, PhD , Frank Schwab , MD , Virginie Lafage , PhD , Christopher Shaffrey , MD , Robert Bess , MD , Tamir Ailon , MD, MPH , Douglas Burton , MD , Eric Klineberg , MD , and International Spine Study Group , (San