[The reconstruction of three dimensional nonlinear finite element model of L3-L5 motion segment].
In this study, a detailed L3-L5, three dimensional nonlinear finite element model of a normal aged 32 man was established with the aid of two softwares, CATIAV5 and MSC. Marc, which can derive a three-dimensional finite element model from CT images. We loaded the model with 10 N * m net moment and computed the average rigidity of functional spinal unit. The model was validated in contrast to the former biomechanical studies of cadaveric spine. The model will be used in further clinical biomechanical studies.
Zhang
Desheng
D
Department of Orthopedics, West China Hospital, Sichuan University, Chengdu 610041, China.
Song
Yueming
Y
D000328:Adult; D001696:Biomechanical Phenomena; D020342:Finite Element Analysis; D006801:Humans; D021621:Imaging, Three-Dimensional / Q000379:methods*; D008159:Lumbar Vertebrae / Q000000981:diagnostic imaging / Q000502:physiology*; D008297:Male; D008954:Models, Biological; D017711:Nonlinear Dynamics; D011859:Radiography; D013314:Stress, Mechanical