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股骨滑车轴作为全膝置换股骨假体旋转对位标志的可靠性研究

The Journal of Traditional Chinese Orthopedics and Traumatology(2009)

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Abstract
目的:在MRI上测量股骨远端旋转力线,研究股骨滑车轴做为全膝置换股骨假体旋转对位标志的可靠性。方法:对78侧正常成人膝关节行磁共振扫描,在横断面图像上定位经股骨上髁轴、Whiteside's前后轴、股骨后髁轴和股骨滑车轴。测量Whi-teside's前后轴、股骨后髁轴、股骨滑车轴相对于经股骨上髁轴旋转的角度,比较它们相对与经股骨上髁轴的可靠性。结果:股骨滑车轴相对于STEA内旋(7.90±3.43)°,相对于CTEA内旋(11.57±3.44)°。Levene检验提示股骨滑车轴分别与股骨后髁轴、Wh-iteside's前后轴相比,相对于经股骨上髁轴的变异性有显著性差别。结论:股骨滑车轴作为全膝置换股骨假体旋转对位标志的可靠性差。
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Key words
replacement,Magnetic resonance imaging,Rotation,Femur,knee,Arthroplasty
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