Three-dimensional geometrical and mechanical modelling of the lumbar spine.
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.
Lavaste
F
F
Laboratoire de Biomécanique, Ecole Nationale Supérieure d'Arts et Métiers, Paris, France.
Skalli
W
W
Robin
S
S
Roy-Camille
R
R
Mazel
C
C
D006801:Humans; D007091:Image Processing, Computer-Assisted; D008159:Lumbar Vertebrae / Q000033:anatomy & histology* / Q000000981:diagnostic imaging / Q000502:physiology; D008953:Models, Anatomic; D011859:Radiography