ISSLS PRIZE IN BIOENGINEERING SCIENCE 2018: dynamic imaging of degenerative spondylolisthesis reveals mid-range dynamic lumbar instability not evident on static clinical radiographs

European Spine Journal : Official Publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society
Malcolm E DombrowskiWilliam J Anderst

Abstract

Degenerative spondylolisthesis (DS) in the setting of symptomatic lumbar spinal stenosis is commonly treated with spinal fusion in addition to decompression with laminectomy. However, recent studies have shown similar clinical outcomes after decompression alone, suggesting that a subset of DS patients may not require spinal fusion. Identification of dynamic instability could prove useful for predicting which patients are at higher risk of post-laminectomy destabilization necessitating fusion. The goal of this study was to determine if static clinical radiographs adequately characterize dynamic instability in patients with lumbar degenerative spondylolisthesis (DS) and to compare the rotational and translational kinematics in vivo during continuous dynamic flexion activity in DS versus asymptomatic age-matched controls. Seven patients with symptomatic single level lumbar DS (6 M, 1 F; 66 ± 5.0 years) and seven age-matched asymptomatic controls (5 M, 2 F age 63.9 ± 6.4 years) underwent biplane radiographic imaging during continuous torso flexion. A volumetric model-based tracking system was used to track each vertebra in the radiographic images using subject-specific 3D bone models from high-resolution computed tomography (CT). I...Continue Reading

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Citations

Jan 27, 2019·International Journal for Numerical Methods in Biomedical Engineering·Iraj Dehghan-HamaniAboulfazl Shirazi-Adl
Aug 1, 2020·The Bone & Joint Journal·Jason P Y CheungPrudence W H Cheung
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Sep 18, 2020·Biomechanics and Modeling in Mechanobiology·Robert RockenfellerKarin Gruber
Apr 26, 2019·The Journal of Orthopaedic and Sports Physical Therapy·N Peter ReevesPaul W Hodges
Apr 25, 2021·European Spine Journal : Official Publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society·Sohrab VirkSheeraz A Qureshi
Jul 22, 2021·Clinical Biomechanics·Alexander B Oldweiler, John T Martin

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