有限元分析法在腰椎生物力学研究中的应用及新进展

有限元分析法是指对复杂形态物体的应力及应变进行分析,具有力学性能测试全面、客观、可重复性的特点。目前,有限元分析法已被广泛应用于脊柱畸形、腰椎损伤以及假体植入等人体复杂结构生物力学的研究中。本文主要介绍有限元分析法在腰椎的椎体、间盘、韧带及肌肉组织中的应用,结合其概念、原理、建模方法等,总结该方法在新型内固定物力学特性研究中的优势,探讨其对不同植骨内固定术式选择的临床意义。

New Progress and Application of Finite Element Analysis Technology in Lumbar Spine Biomechanics

Stress and strain of objects with complex forms can be analyzed by the Finite Element Analysis. It has a comprehensive, objective and reproducible characteristic of mechanical testing and has been widely used in the biomechanical studies of spine. This paper briefly introduced the concepts, principles, modeling methods, software, the advantages and disadvantages of Finite Element Analysis in terms of the application of the finite element method in the research on vertebral body, intervertebral disc, ligament and muscle, as well as the properties of novel internal fixation and selection of different internal fixation formula.