临床骨科杂志2015，Vol.18Issue(6)：686-692,7.DOI:10.3969/j.issn.1008-0287.2015.06.016
膝关节有限元解剖模型的构建及其力学分析
The construction of the anatomical finite element model of knee joint and its mechanical anal-ysis
摘要
Abstract
Objective To develop an anatomically accurate finite element model of knee joint through the method of multimodality CT and MRI image data fusion and to further analyze and verify it for offering a useful tool for the study of knee biomechanics. Methods CT and MRI image data of an intact knee joint were imported into Mimics soft-ware. 3D models of bones,articular cartilages and ligaments were respectively constructed from image data. Following the fusion of the constructed 3D models based on external landmarks, the complete knee model was constructed. Then the knee finite element model was developed in Hypermesh software. Based on anatomical observation and manual measurement, the finite element model was assessed in its fidelity level. Finally the finite element model was analyzed and verified after the definition of its material behavior, boundary conditions and loading. Results The complete knee finite element mode composed of bone,meniscus, articular cartilage,and ligament was developed from CT and MRI images, and it maintained its important anatomical features of knee joint. The obtained finite element analysis results corresponded to that reported in the literature, which meaned the model′s reliability. Conclusions Through the method of multimodality CT and MRI image data fusion, the anatomically accurate finite element model of knee joint can be developed, and it maintains its important anatomical features. This model is a useful tool for the study of knee biomechanics.关键词
膝关节/有限元模型/有限元分析/解剖模型Key words
knee joint/finite element model/finite element analysis/anatomy model分类
医药卫生引用本文复制引用
董跃福,牟志芳,蒋胜波,刘建,刘旭东..膝关节有限元解剖模型的构建及其力学分析[J].临床骨科杂志,2015,18(6):686-692,7.基金项目
连云港市科技局临床应用项目(编号:SH1327 ) （编号:SH1327 ）
连云港市第一人民医院青年英才豪森基金(编号:QN130102) （编号:QN130102）
