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引言Occurence 280,000 Americans/y (>5000/week) 36,000 Canadians/y(>690/week)Complications 30% mortality rate at 1 year Impairment of independence and quality of life revision surgery (30%) The femoral neck fracture is known as the unsolved fracture,股骨颈骨折:口老年人好发(87%>65岁)女∶男=3∶1年龄:女>男高龄:低能损伤青年:高能损伤治疗:以手术治疗为主