中国组织工程研究Issue(35)：6261-6266,6.DOI:10.3969/j.issn.2095-4344.2013.35.007
腰椎L3-L5三维有限元模型的有效性验证**☆
Validation and verification of L3-L5 lumbar three-dimensional finite element model
摘要
Abstract
BACKGROUND:Creation of a precise finite element model is an important basis for the finite element mechanical analysis of the spine. The reports on the precise finite element model are less. <br> OBJECTIVE:To create L 3-L 5 lumbar three-dimensional finite element model and validate this model with normal CT data. <br> METHODS:A 39-year-old male healthy volunteer with the height of 175 cm and weighted 65 kg was selected, then the L 3-L 5 lumbar spines were scanned with 16 row spiral CT to obtain 101 CT images with the thickness of 1.25 mm. Solid geometric model was established with Geomagic9.0 software, then determined the unit type, <br> divided the finite element mesh, and established the finite element model for loading and calculating. <br> RESULTS AND CONCLUSION:A L 3-L 5 lumbar three-dimensional finite element model was established. It <br> included 213 736 nodes and 799 779 elements. The ranges of motion of L 3-L 4 and L 4-L 5 segments of the model were consistent with cadaveric biomechanical testing results, verified the effectiveness of the model, so the <br> model could be used for experimental research.关键词
骨关节植入物/脊柱损伤基础实验/骨与关节三维有限元分析/腰椎/有限元/生物力学/应力/脊柱/CT/网格/椎间盘/省级基金Key words
bone and joint implants/basic experiment of spinal cord injury/three-dimensional finite element analysis of bone and joint/lumbar spine/finite element/biomechanics/stress/spine/computed tomography/meshing/disc/provincial grants-supported paper分类
医药卫生引用本文复制引用
徐浩,张秋林,唐昊,陈博..腰椎L3-L5三维有限元模型的有效性验证**☆[J].中国组织工程研究,2013,(35):6261-6266,6.基金项目
Key Project of Shanghai Science and Technology Committee, No.09411952900* （）
Social Development Projects in Wujiang, No. WS201004* （）
