| 计算机辅助全膝置换中股骨力线定位精度的实验研究 |
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| 引用本文： | 黄雪梅,王成焘. 计算机辅助全膝置换中股骨力线定位精度的实验研究[J]. 生物医学工程学杂志, 2006, 23(1): 82-84,89 |
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| 作者姓名： | 黄雪梅 王成焘 |
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| 作者单位： | 1. 山东理工大学,机械工程学院,淄博,255049
2. 上海交通大学,生命质量与机械工程研究所,上海,200030 |
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| 摘 要： | 摘要利用光学定位追踪仪确定全膝置换中患者的股骨头中心从而确定其股骨力线，在力线的定位精度分析中，首次采用股骨的三维重建模型进行精度校验。实验结果表明通过追踪固定于股骨末端的刚性定位器即能确定精确的股骨力线，与传统的髓内定位相比，不仅可重复性好，而且大大地提高了术中股骨力线的位置精度，将其位置偏差减小到10以内。
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| 关 键 词： | 全膝置换 光学定位追踪仪 力线 |
| 收稿时间： | 2003-09-17 |
| 修稿时间： | 2003-09-172004-03-02 |
Accuracy of Femur Mechanical Axis in Computer-assisted Total Knee Replacement |
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| Huang Xuemei,Wang Chengtao. Accuracy of Femur Mechanical Axis in Computer-assisted Total Knee Replacement[J]. Journal of biomedical engineering, 2006, 23(1): 82-84,89 |
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| Authors: | Huang Xuemei Wang Chengtao |
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| Affiliation: | 1 Institute of Mechanical Engineering, Shandong University of Technology, Zibo 255049, China; 2 School of Mechanical and Power Engineering, Shanghai Jiaotong University, Shanghai 200030, China |
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| Abstract: | The location of the center of the femoral head and the mechanical axis of femur were obtained by using optical tracking localizer in computer-assisted total knee replacement (TKR). The 3-D reconstruction model of femur was used firstly in the accuracy verification of mechanical axis of femur. The results showed that the accurate mechanical axis of femur can be defined by tracking the reference frame pinned at the distal femur. Compared to the intramedullary rods locating, this method introduces mechanical axis error less that 1 and the accuracy and repeatability of mechanical axis definition have been improved greatly. |
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| Keywords: | Total knee replacement(TKR) Optical tracking localizer Mechanical axis |
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