METHODS: A case- control study was undertaken with ten right-handed golfers who had undergone TKA (cruciate-retaining single radius implant) and five matched golfers with native knees. Each golfer performed five swings with a driver whilst being recorded at 200 Hz by a ten-camera motion capture system. Knee and hip three-dimensional joint angles (JA) and joint angular velocities (JAV) were calculated and statistically compared between the groups at six swing events.
RESULTS: The left knee demonstrated large effect sizes for lower external rotation during take away, mid (p = 0.01) and top of backswing in the TKA group. In contrast, the right knee demonstrated large effect sizes for lower external rotation in the TKA group during the downswing, contact and follow-through phases. There were no differences in knee flexion/extension, ab/adduction, or JAV between the groups. Both hips demonstrated statistically significantly (p = 0.02 for left and p = 0.04 for right) lower flexion in the TKA group during the takeaway swing event, and lower internal rotation in the backswing and greater external rotation in the downswing of the right hip.
CONCLUSIONS: Normal knee kinematics were observed during the golf swing following TKA, with the exception of reduced external rotation in the left knee during the backswing and the right during the down swing. The differences demonstrated in the hip motion indicate that they may make compensatory movements to adjust to the reduced external rotation demonstrated in the knee.
METHODS: IV.
方法:对10名右撇子高尔夫球手进行了一项病例对照研究,这些高尔夫球手接受了TKA(保留十字交叉的单桡骨植入物)和5名具有天然膝盖的匹配高尔夫球手。每个高尔夫球手与一名车手进行五次挥杆,同时由10个摄像头的动作捕捉系统以200Hz的频率进行记录。计算膝关节和髋关节三维关节角度(JA)和关节角速度(JAV),并在6个摆动事件中进行统计学比较。
结果:在带走过程中,左膝表现出较大的外部旋转效应,TKA组后摆的中部(p=0.01)和顶部。相比之下,右膝在TKA组下摆时表现出较大的外旋效应,接触和后续阶段。膝关节屈伸无差异,ab/内收,或组间的JAV。在外卖摆动事件期间,TKA组的两个臀部均显示出统计学上的显着差异(左p=0.02,右p=0.04)。后摆的内部旋转较低,右髋部下摆的外部旋转较大。
结论:在TKA后的高尔夫挥杆过程中观察到正常的膝关节运动学,除了后挥杆时左膝盖和下挥杆时右膝盖的外旋转减少。髋关节运动中显示的差异表明,它们可能会进行补偿性运动,以适应膝盖中显示的外部旋转减少。
方法:IV.