3-DIMENSIONAL GEOMETRICAL AND MECHANICAL MODELING OF THE LUMBAR SPINE

被引:132
作者
LAVASTE, F
SKALLI, W
ROBIN, S
ROYCAMILLE, R
MAZEL, C
机构
[1] SOFAMOR SA,DEPT RECH & DEV,BERCK,FRANCE
[2] CHU PITIE SALPETRIERE,SERV CHIRURG ORTHOPED,F-75634 PARIS 13,FRANCE
关键词
D O I
10.1016/0021-9290(92)90071-8
中图分类号
Q6 [生物物理学];
学科分类号
071011 ;
摘要
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 (anterioposterior 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.
引用
收藏
页码:1153 / 1164
页数:12
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