摘要
有限元分析法可对形态、结构、材料和载荷情况极其复杂的构件进行应力、应变分析,而且具有力学性能测试全面,可重复性,可控性等优点,目前已广泛地应用于脊柱的复杂结构生物力学研究中。文章简单介绍了几种常用的有限元分析软件的特点,概括了椎体、椎间盘、附件结构和韧带组织和肌肉的生物力学特点,并且较细致地总结了有限元法在腰椎融合方面的研究成果,其中包括对椎间融合器cage的生物力学特点及其置入后对融合节段生物力学的影响,及相关的术式选择,动力性融合,人工椎间盘置入对脊柱生物力学的影响,脊柱肿瘤切除术不同融合方式的生物力学比较。认为有限元法能帮助理解脊柱复杂结构的生物力学,进而为腰椎融合手术方法选择提供生物力学上的参考。
Finite element analysis can analyze the stress and strain change of object with complex shape, structure, constitution and load condition, and is widely applied to spinal biomechanical studies due to its controllability, reproducibility and versatility in mechanics tests. The article briefly introduced several finite element analysis software, summarized the mechanical characteristics of vertebral body, intervertebral disc, accessories and the ligament and muscle around the spine, and summarized research achievements of f＇mite element analysis in lumbar fusion, concerning the biomechanics of Cage, its influence on lumbar fusion and related surgery choice, dynamic fusion, artificial intervertebral disc and the biomechanical variation of different fusion style after spinal tumor vertebrectomy. Finite element analysis can help understand the spine biomechanics and provide biomechanical reference for lumbar fusion choice.
出处
《中国组织工程研究与临床康复》
CAS
CSCD
北大核心
2008年第30期5949-5952,共4页
Journal of Clinical Rehabilitative Tissue Engineering Research
