7Johnell O, Kanis JA. An estimate of the worldwide prevalence, mortality and disability associated with hip frac- ture [ J ]. Osteoporos Int, 2004,15 ( 11 ) : 897-902.
8Kesmenli C, Subasi M, Arsian H, et al. Treatment of inter- trochanteric fractures in elderly patients with leinbach type endoprosteses [ J ]. Ulus trauma Derg, 2001,7 (4) : 254-257.
9Lin PC, Chang SY. Functional recovery among elderly people one year after hip fracture surgery [ J ]. J Nurs Res, 2004, 12(1) :72-82.
10Thiele OC, Eckhardt C, Linke B, et al. Factors affecting the stability of screws in human cortical osteoporotic bone : a ca- daver study [ J ]. Bone Joint Surg Br, 2007,89 (5) : 701-705.
