Wruhs O, Orthner E, Resch W
Unfallchirurgie. 1985 Dec;11(6):323-8. doi: 10.1007/BF02587984.
Physical definition and laws of rotating systems will be stated. The application for supination in ankle joint shows, that lever action increases the force applied up to four times in case of stress X-rays in the a.-p. view. As quoted in literature, the test power of up to 25 kp means a loading of the lateral collaterals up to 100 kp. An additional iatrogenic rupture of already traumatically partially sprained structures seems possible. The critical judgement of five different methods producing stress X-rays of the ankle joint shows the weak points of this test system. Beck's method seems sufficient for precise statements and judgement of the stress X-ray tests without endangering ligaments so far unsprained.
将阐述旋转系统的物理定义和定律。踝关节旋后应用表明，在前后位应力X线检查时，杠杆作用可使施加的力增加至四倍。如文献所述，高达25kp的测试力意味着外侧副韧带承受高达100kp的负荷。已经因外伤而部分扭伤的结构可能会出现额外的医源性断裂。对产生踝关节应力X线的五种不同方法的批判性判断显示了该测试系统的薄弱点。贝克方法似乎足以对应力X线检查进行精确的陈述和判断，而不会危及尚未扭伤的韧带。
