Abstract
The aim of this study is to create a three-dimensional model of a cervical spine motion segment and to confirm it by inspecting the model with similar FE method. Initially a model was created by extracting CT scan images and the mesh was generated. FEM models of the lower cervical spine are derived from a CT scan with dissimilar elements and then quality of these models is evaluated with the help of mesh element-related metrics. Different material properties were assigned for each part of the model and then the analysis was carried out. Finite element analysis is used to find the effect of variations in morphology of spine, intervertebral disc height, slope of facet joint, process height of articular facet joint and segment size was parameterized. Ligament forces and vertebral rotation variations was also done as part of the FE study. The individual components of spine are subjected to different types of loading situations and the stresses developed on them need to studied. Some of the most important morphological variations found in the anatomy were disc segmental size & stress developed in the superior and inferior endplates and also the stress developed in the disc were analysed. The results obtained were collated with some external references and after validation of the model; the model could be used for extended similar studies.
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