| 基于叶脉骨架结构的股骨柄设计方法 |
| 投稿时间：2021-10-10 修订日期：2021-11-02 点此下载全文 |
| 引用本文：王淋,周玥廷.基于叶脉骨架结构的股骨柄设计方法[J].计算机辅助工程,2021,30(4):. |
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| 中文摘要:提高股骨柄假体与股骨髓腔的良好匹配是关节外科中非常重要的临床问题之一。现有股骨柄假体设计方法尚未考虑股骨柄局部感兴趣区域的二次编辑性，使得假体模型的后期修改存在困难。为此，本文给出一种基于叶脉骨架结构的股骨柄假体设计方法，通过股骨关键横切面获取股骨髓腔中心，并测量股骨髓腔形态参数，之后选取粗隆区域为感兴趣区域并构建其叶脉骨架结构，最后构建股骨柄模型。有限元分析结果表明，通过本文方法构建的股骨柄假体具有良好的力学性能。可见，本文方法具有简单、灵活、高效等特点，可为股骨柄假体设计提供新方法，对提高股骨柄假体与股骨髓腔的匹配性有重要意义。 |
| 中文关键词:股骨 股骨柄 髓腔 感兴趣区域 叶脉骨架结构 有限元分析 |
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| Design Method of Femoral Stem Based on Vein Skeleton Structure |
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| Abstract:Improving the good matching between femoral stem prosthesis and femoral medullary cavity is one of the most paramount clinical problems in joint surgery. The existing design methods of femoral stem prosthesis have not taken into account the secondary editing of the local region of interest of the femoral stem, which makes it difficult to modify the prosthesis model in the later stage. Aiming at fixing this problem, a design method of femoral stem prosthesis based on vein skeleton structure is presented in this paper; the center of femoral medullary cavity is obtained from the key cross section of femur, and the morphological parameters of femoral bone marrow cavity are measured, then the tuberosity area is selected as the region of interest and the vein skeleton structure is constructed, and finally the femoral stem model is constructed. The finite element analysis results demonstrate that the femoral stem prosthesis constructed by this method has good mechanical properties. It can be seen that this method is simple, flexible and efficient, which furnishes a new method for the design of femoral stem prosthesis and is of great significance to improve the matching between femoral stem prosthesis and femoral medullary cavity. |
| keywords:femur femoral stem medullary cavity region of interest vein skeleton structure finite element analysis |
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