Search Results

You are looking at 1 - 10 of 10 items for :

  • "sagittal alignment" x
  • By Author: Arnold, Paul M. x
Clear All
Full access

Dominic Maggio, Tamir T. Ailon, Justin S. Smith, Christopher I. Shaffrey, Virginie Lafage, Frank Schwab, Regis W. Haid Jr., Themistocles Protopsaltis, Eric Klineberg, Justin K. Scheer, Shay Bess, Paul M. Arnold, Jens Chapman, Michael G. Fehlings, Christopher Ames, AOSpine North America and International Spine Study Group

S urgical planning to address seemingly isolated lumbar pathology may lead to suboptimal results if a patient’s global spinal alignment is not taken into account. In recent years, there has been a greater appreciation of the interaction between different regions of the spine and the pelvis in producing harmonious global alignment. Malalignment in 1 region may result in compensatory changes in an adjacent (or even distant) region. This is particularly true in the setting of deformity surgery wherein correction of sagittal alignment can result in reciprocal

Full access

Shian Liu, Renaud Lafage, Justin S. Smith, Themistocles S. Protopsaltis, Virginie C. Lafage, Vincent Challier, Christopher I. Shaffrey, Kris Radcliff, Paul M. Arnold, Jens R. Chapman, Frank J. Schwab, Eric M. Massicotte, S. Tim Yoon, Michael G. Fehlings and Christopher P. Ames

Population A total of 110 patients with CSM from the AOSpine North America study database met inclusion criteria for this analysis. The average age was 56.9 ± 12.0 years and 42% of patients were women (n = 46). The mean duration of symptoms at baseline was 28.4 months. Baseline Presentation: Nurick Grade, HRQOL Measures, and Sagittal Alignment Mean Nurick grade and HRQOL measures demonstrated disability at baseline. More than 90% of patients (n = 100) presented clinically with a Nurick grade between 1 and 3 at baseline ( Table 1 ). Patient-reported outcomes

Free access

examined include presence of interbody fusion, rod diameter, rod material, age and preop sagittal alignment. Methods: A retrospective review of a multicenter, prospective ASD database was conducted. Inclusion criteria: age=18yr, ASD, no revisions between >6wk and <2yrs postop. Spinal pelvic parameters, thoracic kyphosis (TK:T2-T12) and lumbar lordosis (LL:L1-S1) were measured overall and within and outside of the instrumented segments. Changes for SVA, PT, PI-LL, TK, and LL between 6wks-2yrs postop were calculated. Of these pts, the amount of thoracic loss and TL

Free access

surveys than NONOP (p<0.05). OP and NONOP had similar coronal alignment (p<0.05). OP had worse sagittal spinopelvic alignment for all measures than NONOP except cervical lordosis, TK and pelvic incidence (PI). OP had greater percentage of pure sagittal classification (type S; OP=23%, NON=14%; p<0.05). OP had worse grades for all modifier categories: PT (26% vs 16%), PI-lumbar lordosis mismatch (37% vs 21%) and global sagittal alignment (29% vs 9%), OP vs NONOP, respectively (p<0.05). Conclusion: Prospective analysis of OP vs NONOP treated ASD patients demonstrated

Free access

-0684 American Association of Neurological Surgeons 10.3171/2017.3.FOC-DSPNabstracts 2017.3.FOC-DSPNABSTRACTS Charles Kuntz Scholar Award Presentations (Abstracts 104–123) 119. Laminoplasty vs. Laminectomy-Fusion for the Treatment of Cervical Myelopathy: Preliminary Results from the CSM-Study Comparing Cervical Sagittal Alignment and Clinical Outcomes Vijay Ravindra , MD, MSPH , Jill Curran , MS , Praveen V. Mummaneni , MD , Adam S. Kanter , MD , Erica Fay Bisson , MD, MPH , Robert F. Heary , MD

Full access

sagittal alignment on MRI. In addition, no study has shown clinical superiority of flexion-extension xrays compared to upright static xrays in order to diagnose a lumbar anterolisthesis. Methods We retrospectively evaluated all patients presenting to spine clinic for degenerative lumbar conditions for 24 consecutive months who had an MRI, upright lateral, as well as flexion-extension radiographs at our institution. Comparing radiographic reads by a musculoskeletal radiologist, the incidence of degenerative spondylolisthesis found on dynamic flexion

Full access

30; p<0.001). Conclusions The addition of PPI seems to have a protective effect on the development of PJK. The analysis controlled for preoperative sagittal alignment as well as for correction of PI-LL. HYB was effective in restoring sagittal global alignment and cMIS in maintaining it. Neurosurg Focus Neurosurgical Focus FOC 1092-0684 American Association of Neurological Surgeons 2014.3.FOC-DSPNABSTRACTS Abstract Mayfield Clinical Science 243. Microendoscopic Decompression for Cervical Spondylotic Myelopathy

Free access

deformation of non-operative spine fractures and identify predictive variables of angular change. Summary of Background Data Loss of normal sagittal alignment of the spine is a common sequela following thoracolumbar injuries. Patients treated non-operatively are especially at risk; however knowledge of the natural history of these injuries and predictors of deformation over time remains limited. Methods Patients with thoracolumbar fractures were identified via a trauma database. The angular change about the fracture site was determined comparing initial CT

Free access

, Eric Massicotte , MD, MSc , and Michael Fehlings , MD, PhD (Toronto, Canada) 8 2015 123 2 History of Craniotomy, Cranioplasty, and Perioperative Care A493 A493 Copyright held by the American Association of Neurological Surgeons. You may not sell, republish, or systematically distribute any published materials without written permission from JNSPG. 2015 Introduction There is evidence that cervical sagittal alignment and spinal cord MRI hyperintensity correlate with disease severity in CSM patients. The impact of spinal