text_1: 患者 纳入 标准 为 ≥ 50 岁 , 发生 低 能量 损伤 所致 的 移位 型 股骨颈 骨折 并 计划 接受 手术 治疗 , 而且 在 髋部 骨折 发生 之前 可 无需 他人 协助 而 独立 行走 .
  
text_2: to be eligible for participation , patients had to be 50 years of age or older , had to have a low @-@ energy displaced fracture of the femoral neck that was planned to be treated with surgery , and had to have been able to ambulate without the assistance of another person before the hip fracture occurred .
  