髋关节脆性骨折是最严重的脆性骨折,给老年人的行动、独立生活和生活质量带来很大不良影响,导致了老年人的病死率上升[1-2]。随着人口老龄化,髋关节骨折发病率逐年上升,预计世界范围内髋关节骨折发生数量将从1990年的170万增加到2050年的630万[3]。髋关节发生脆性骨折主要因其力学性能发生变化,而这种变化与多种因素有关,包括骨密度(bone mineral density,BMD)、骨 Fragile fractures of the hip are the most serious fragility fractures, which have a great adverse effect on the elderly’s activities, independent living and quality of life, leading to an increase in the mortality of the elderly [1-2]. As the population ages, the incidence of hip fracture increases year by year. It is estimated that the number of hip fracture in the world will increase from 1.7 million in 1990 to 6.3 million in 2050 [3]. Brittle fractures of the hip occur mainly because of their mechanical properties, and these changes are associated with a variety of factors, including bone mineral density (BMD), bone