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Since the structure of the lumbar spine is extremely complex, a finite element analysis method was used to perform biomechanical simulation and analysis of stress and strain on the L3\u2013L4 lumbar segment to provide both a scientific and theoretical basis for clinical diagnosis and medical research. The MC volume-rendering 3D reconstruction method was the first step to accurately constructing the finite element model of the L3\u2013L4 lumbar sacral segment, which was simulated prior to the addition of the ligaments, fibrous ring, and other major spinal tissue. The finite element model network was classified and the material properties of the corresponding parts were described. According to the normal model, careful simulation and deformation were performed, in addition to intervertebral disc degeneration in various cases. We have provided a detailed and professional analysis of the biomechanical properties, providing a powerful biomechanical basis for the diagnosis of intervertebral disc bulge and degeneration. <\/jats:p>","DOI":"10.1142\/s0218001419540053","type":"journal-article","created":{"date-parts":[[2018,7,18]],"date-time":"2018-07-18T22:14:25Z","timestamp":1531952065000},"page":"1954005","source":"Crossref","is-referenced-by-count":0,"title":["Research on Spinal Lumbar Sacral Degeneration Finite Element Model"],"prefix":"10.1142","volume":"33","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-7052-7129","authenticated-orcid":false,"given":"Yu","family":"Hui","sequence":"first","affiliation":[{"name":"School of Computer Science, Northwestern Polytechnical University, Xi\u2019an 710072, P. R. China"}]},{"given":"Kai-Rui","family":"Zhao","sequence":"additional","affiliation":[{"name":"School of Automation, Northwestern Polytechnical University, Xi\u2019an 710072, P. R. 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