摘要
针对目前腰椎疾病高发,研究多工况下腰椎的力学情况是研究部分腰椎疾病的重要基础,选取一名健康男性志愿者,对其进行螺旋CT扫描,数据通过逆向建模软件处理得到三维实体图,利用有限元软件进行高质量网格划分与模型力学有效性验证。模型在500N、1 000N、1 500N、2 000N的正压力下,轴向位移分别为0.30mm、0.64mm、0.87mm、1.09mm,在500N正压力和10N·m扭矩下,前屈、后伸、侧弯、扭转的关节活动度与文献中数据基本一致,验证了模型的有效性。高质量腰椎有限元模型可用于模拟腰椎生物力学实验,对后续模拟部分人体腰椎疾病和医疗手术的生物力学情况打下了基础。
For the current high incidence of lumbar disease, the research of lumber＇s mechanics on various working conditions is an important basis for the study of lumbar disease. A healthy male volunteer was selected and scanned with spiral CT. The data was processed by reverse modeling software. The finite element software was used for high-quality meshing and verification of mechanical validity. The axial displacements of the model under normal pressure of 500N, 1 000N, 1 500N, 2 000N were 0. 30mm, 0. 64ram, 0. 87ram, 1. 09mm. The range of motion of flexion, extension, lateral bending and torsion under 500N positive pressure and 10N·m torque was basically the same with the data in the reference. The finite element model was validated. The finite element model of lumbar vertebra can be used to simulate biomechanics of lumbar vertebra and lay the foundation for the follow-up simulation of biomechanics of lumbar disease and medical operation.
出处
《医学与哲学（B）》
2017年第5期50-53,共4页
Medicine & Philosophy(B)
基金
2015年国家自然科学基金资助项目(51575320)
