Lavaste F, Skalli W, Robin S, Roy-Camille R, Mazel C
Laboratoire de Biomécanique, Ecole Nationale Supérieure d'Arts et Métiers, Paris, France.
J Biomech. 1992 Oct;25(10):1153-64. doi: 10.1016/0021-9290(92)90071-8.
The main objective of this study is to design a three-dimensional geometrical and mechanical finite element model of the lumbar spine. The model's geometry is constructed using six parameters per vertebra. These parameters are digitized from two X-rays (anterio-posterior and lateral), thus yielding an individualized model which can be arrived at from the radiographs of a tested specimen. This procedure makes the model validation easier, as geometry is generally a factor of dispersion in experimental results. The geometrical reconstruction, in the form of a finite elements mesh, was effected for the whole lumbar spine. The global coherence of the model was verified.
本研究的主要目的是设计一个腰椎的三维几何和力学有限元模型。该模型的几何形状由每个椎体的六个参数构建而成。这些参数是从两张X光片（前后位和侧位）数字化得来的，从而生成一个可以从测试样本的X光片得出的个性化模型。由于几何形状通常是实验结果离散的一个因素，所以这个过程使模型验证更加容易。以有限元网格形式进行的几何重建是针对整个腰椎进行的。该模型的整体一致性得到了验证。
