Biomechanical comparison of multilevel lateral interbody fusion with and without supplementary instrumentation: a three-dimensional finite element study
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- 作者：Xilin Liu ; Jun Ma ; Paul Park ; Xiaodong Huang ; Ning Xie…
- 关键词：Finite element analysis ; Minimally invasive lateral lumbar interbody fusion ; LLIF ; Stand ; alone ; Range of motion ; Stress distribution
- 刊名：BMC Musculoskeletal Disorders
- 出版年：2017
- 出版时间：December 2017
- 年：2017
- 卷：18
- 期：1
- 全文大小：6554KB
- 刊物主题：Orthopedics; Rehabilitation; Rheumatology; Sports Medicine; Internal Medicine; Epidemiology;
- 出版者：BioMed Central
- ISSN：1471-2474
- 卷排序：18
文摘
BackgroundLateral lumbar interbody fusion (LLIF) is a popular, minimally invasive technique that is used to address challenging multilevel degenerative spinal diseases. It remains controversial whether supplemental instrumentation should be added for multilevel LLIF. In this study, we compared the kinematic stability afforded by stand-alone lateral cages with those supplemented by bilateral pedicle screws and rods (PSR), unilateral PSR, or lateral plate (LP) fixation using a finite-element (FE) model of a multi-level LLIF construct with simulated osteoporosis. Additionally, to evaluate the prospect of cage subsidence, the stress change characteristics were surveyed at cage-endplate interfaces.