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