Geometrical aspects of patient-specific modelling of the intervertebral disc: collagen fibre orientation and residual stress distribution.

摘要: Patient-specific modelling of the spine is a powerful tool to explore prevention and treatment injuries pathologies. Albeit several methods have been proposed for discretization bony structures, efficient representation intervertebral disc anisotropy remains challenge, especially with complex geometries. Furthermore, swelling disc's nucleus pulposus normally added model after geometry definition, at cost changes material properties an unrealistic description prestressed state. The aim this study was develop techniques, which preserve patient-specific allow system residual stresses, independent discretization. Depending on features, developed approaches resulted in response models that good agreement physiological observed corresponding experiments. represent first step towards development respect both mechanical specific disc.