Dynamic stabilization adjacent to single-level fusion: Part I. Biomechanical effects on lumbar spinal motion
نویسندگان
چکیده
منابع مشابه
Adjacent Segment Pathology after Lumbar Spinal Fusion
One of the major clinical issues encountered after lumbar spinal fusion is the development of adjacent segment pathology (ASP) caused by increased mechanical stress at adjacent segments, and resulting in various radiographic changes and clinical symptoms. This condition may require surgical intervention. The incidence of ASP varies with both the definition and methodology adopted in individual ...
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Study Design Biomechanical study. Objective Posterior instrumentation is used to stabilize the spine after a lumbar laminectomy. However, the effects on the adjacent segmental stability are unknown. Therefore, we studied the range of motion (ROM) and stiffness of treated lumbar spinal segments and cranial segments after a laminectomy and after posterior instrumentation in flexion and extension ...
متن کاملAdjacent Segment Motion After Lumbar Fusion
t I I Study Design. For in vitro studies, there is no basis t for choosing a "load control study" over a "displace: ment control" study. This study qualitatively compared f results from in vitro and in vivo tests, allowing the au€ : thors to address the experimental assumptions that in vitro testing contributes to the understanding of the in vivo condition. Objectives. To compare motion changes...
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A 70-year-old outpatient presented with a chief complaint of sudden left leg motor weakness and sensory disturbance. He had undergone L4/5 posterior interbody fusion with L3-5 posterior fusions for spondylolisthesis 3 years prior, and the screws were removed 1 year later. He has been followed up for 3 years, and there had been no adjacent segment problems before this presentation. Lumbar magnet...
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STUDY DESIGN An in vitro biomechanical study of adjacent segment motion (at L3-L4 and L5-S1) after a simulated lumbar interbody fusion of L4-L5 in different sagittal alignments was carried out. OBJECTIVES To test the hypothesis that an L4-L5 fixation in different sagittal alignments causes increased angular motion at the adjacent levels (L3-L4 and L5-S1) in comparison with the intact spine. ...
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ژورنال
عنوان ژورنال: European Spine Journal
سال: 2010
ISSN: 0940-6719,1432-0932
DOI: 10.1007/s00586-010-1549-9