【摘要】 通过MSC.MARC建立膝关节的三维有限元模型，为膝关节的创伤、骨折的力学分析及人工关节的开发提供方法学的支持。以螺旋CT得到整个膝关节的CT影像图，扫描层间距为1.0mm。以DICOM文件的数据点信息为数据源，通过相关软件读取DICOM数据文件，获得膝关节的二维CT影像，通过平面图形软件编辑和处理得到膝关节的边界，将边界曲线输入MSC.MARC中建立了膝关节三维有限元模型。通过MSC.MARC建立的三维有限元模型能够真实反应膝关节的解剖结构。

    【关键词】 有限元;膝关节;三维重建;DICOM

    【Abstract】 Use MSC.MARC software to build a three-dimension finite-element model of knee joint and to provide a method for force-analysis and of fractures and trauma in knee joint.Getting CT image picture of the whole knee joint with spiral CT,it is 1.0 mm to scan one layer of intervals.Use DICOM file as the data source and get two-dimensional CT image of the knee joint through the relevant software.Using figure software edit and get shin bone border of knee joint then export the border curve to MSC.MARC software and set up the three-dimensional model.A three-dimension finite-element model of knee joint ......