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  • By Author: Anand, Neel x
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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

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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

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kyphosis correction and in a maintenance of the sagittal alignment similar to a long-segment instrumentation allowing to save two or more segments of vertebral motion. J Neurosurg Journal of Neurosurgery JNS 0022-3085 1933-0693 American Association of Neurological Surgeons 10.3171/2017.4.JNS.AANS2017abstracts 2017.4.JNS.AANS2017ABSTRACTS Oral Presentations 645: Enhanced Preoperative Prediction of Discharge Disposition for Neurosurgical Patients Nikhil Sharma , Matthew Piazza , MD , Rebecca DeMoor