What are the deforming forces on the proximal fragment in a subtrochanteric femur fracture?股骨轉(zhuǎn)子下骨折中近端骨折塊的變形力是什么? 1. Abduction – gluteus medius and minimus1. 外展 – 臀中肌和臀小肌 2. Flexion – iliopsoas2. 屈曲 – 髂腰肌 3. External rotation – short external rotators3. 外旋 – 短外旋肌*英文原文為準(zhǔn),中文翻譯僅供參考。