Finite element model of a dynamic spinal implant

This paper presents a finite element model of the spine lumbar segment equipped with a dynamic implant. The aim of this study is to develop a numerical tool that allows engineers to test different design solutions and to understand the behavior of the implant and its influence on the spine, in particular the implanted and the adjacent segments. The first simulations allowed the visualization of strains and stresses in the implant and the characterization of the intra-vertebral pressure in two segments.