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Mechanism of injury The fracture usually results from a simple fall; however, in very osteoporotic people, less force is required–perhaps no more than catching a toe in the carpet and twisting the hip into external rotation. Some patients may have experienced minor symptoms of a preceding stress fracture of the femoral neck. In younger individuals, the usual cause is a fall from a height or a blow sustained in a road accident. These patients often have multiple injuries and in 20 percent there is an associated fracture of the femoral shaft. Occasionally, stress fractures of the femoral neck occur in runners or military personnel. ---from 《Apley’s System of Orthopaedics and Fractures》 重点词汇整理： carpet /ˈkɑːrpɪt/v. 把地毯铺在……上；厚厚地铺上；（非正式）斥责n. 地毯；地毯状覆盖物；（非正式）人工球场；地毯衣蛾；（非正式）斥责 preceding /prɪˈsiːdɪŋ/v. 在...之前（precede的ing形式）adj. 在前的；前述的 stress fracture 应力性骨折 personnel. /ˌpɜːrsəˈnel/n. 人事部门；全体人员adj. 人员的；有关人事的 百度翻译： 损伤机制 骨折通常是由简单的摔倒造成的；然而，对于骨质疏松症患者来说，所需的力量要少得多——也许只不过是在地毯上抓住一个脚趾，然后扭动臀部进行外旋。有些病人可能经历过股骨颈应力性骨折的轻微症状。对于年轻人来说，常见的原因是从高处坠落或在交通事故中遭受打击。这些患者通常有多处损伤，20%的患者伴有股骨干骨折。偶尔，跑步者或军人会发生股骨颈应力性骨折。 |
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