The rotational angle in osteoarthritic knees
The rotational angle in osteoarthritic knees
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DOI：
10.1007/s002640050261
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发表时间：
1998-11-01
影响因子：
2.7
通讯作者：
Mizuno, K
中科院分区：
文献类型：
--
作者：
Nagao, N;Tachibana, T;Mizuno, K
骨关节炎膝关节负重时膝关节的旋转角度尚未完全确定。作者的目的是通过超声检查来检查负重时旋转的性质和程度。超声测量的旋转角度与CT测量的旋转角度有高度显著相关性。对107例骨关节炎患者和40例正常对照膝关节负重时的动态旋转运动进行了测量。屈曲20 °时，早期1级骨关节炎膝关节的内旋（-1.6 °）显著小于对照膝关节（-4.8 °，P=0.004）。这种异常是膝关节骨关节炎的初始病理性旋转改变。随着内侧间室骨关节炎的进展，最大伸展时的外旋和旋入运动比例的旋转减少。通过这些观察，我们阐明了负重时骨关节炎膝关节的动态旋转运动。
The angle of rotation of the knee joint during weight-bearing in osteoarthritic knees has not been fully determined. The authors aimed to examine the nature and extent of rotation during weight-bearing by means of ultrasonic investigation. There was a highly significantly correlation between the rotational angle measured by ultrasound and that determined by CT. The dynamic rotatory movement during weight-bearing was measured in 107 osteoarthritic and 40 control knees. At 20 degrees of flexion the internal rotation of the early grade 1 osteoarthritic knees (-1.6 degrees) was significantly less than that of the control knees (-4.8 degrees, P=0.004). This abnormality was the initial pathological rotational change in osteoarthritis of the knee joint. The external rotation at maximal extension and the rotation of the screw-home movement proportionately decreased with progression of medial compartment osteoarthritis. By virtue of these observations we have clarified the dynamic rotatory movement in osteoarthritis knees during weight-bearing.