Inhaltszusammenfassung

Extensive mechanical loads on the lumbar spine often lead to degenerative damages of spinal structures. In many cases surgical interventions, such as spinal fusion, are unavoidable. An appropriate method for the estimation of the mechanical effects of such interventions, is the mathematical computer simulation. This paper presents a 3D- MultiBodySimulation- (MBS-) model of the lumbar spine. With this model the loads on the different structures, before and after spi...Extensive mechanical loads on the lumbar spine often lead to degenerative damages of spinal structures. In many cases surgical interventions, such as spinal fusion, are unavoidable. An appropriate method for the estimation of the mechanical effects of such interventions, is the mathematical computer simulation. This paper presents a 3D- MultiBodySimulation- (MBS-) model of the lumbar spine. With this model the loads on the different structures, before and after spinal fusion of the functional spine unit L5-L4, are calculated to show the biomechanical effects to adjacent vertebral segments under different load cases. The comparison of the simulations shows a redistribution of loads within the spinal structures. In the simulation case of spinal fusion, the posterior structures are more loaded than in the simulated healthy state. The validation of the model was carried out by comparing the results with FE-simulations, various in vitro experiments and experimental data from biomedical literature.» weiterlesen» einklappen

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