Holm I, Nordsletten L, Steen H, Follerås G, Bjerkreim I
Sophies Minde Orthopaedic Hospital, University of Oslo, Norway.
J Bone Joint Surg Br. 1994 Jan;76(1):143-6.
We performed isokinetic knee testing to assess thigh muscle function in ten patients (12 legs) before and after mid-shaft femoral shortening averaging 46 mm (27 to 70). Tests were at angular velocities of 60 degrees/sec and 180 degrees/sec, and were performed preoperatively and after 3, 6, 12 and 24 months. Isokinetic tests at two years showed a significant reduction in muscle function in both quadriceps and hamstrings, but recovery of function was significantly better for the hamstrings. There was a linear relationship with correlation of r2 = 0.31 to 0.86 between loss of muscle force at two years and the magnitude of shortening. Long-term loss of muscle force should be expected after a mid-shaft shortening of the femur of more than 10%.
我们对10例患者（12条腿）进行了等速膝关节测试，以评估股骨干平均缩短46毫米（27至70毫米）前后的大腿肌肉功能。测试在60度/秒和180度/秒的角速度下进行，分别在术前以及术后3个月、6个月、12个月和24个月进行。两年时的等速测试显示，股四头肌和腘绳肌的肌肉功能均显著下降，但腘绳肌的功能恢复明显更好。两年时肌肉力量的丧失与缩短幅度之间存在线性关系，相关系数r2为0.31至0.86。股骨干缩短超过10%后，应预期会出现长期肌肉力量丧失。
