6Madsen JE, Naess L, Aune AK, et al. Dynamic hip screw with trochanteric stabilizing plate in the treatment of unstable proximal femoral fractures: a comparative study with the Gamma nail and compression hip screw [ J ]. J Orthop Trauma, 1998,12 ( 4 ) : 241 - 248.
7Kesmezacar H, Ogut T, Bilgili MG, et al. Treatment of intertrochanteric femur fractures in elderly patients : internal fixation or hemiarthroplasty [ J]. Acta Orthop Traumatol Turc, 2005,39 (4) : 287 - 294.
8Singh M, Nagrath AR, Maini PS. Changes in trabecular pattern of the upper end of the femur as an index of osteoporosis [ J ]. J Bone Joint Surg (Am), 1970,52 ( 3 ) : 457 - 467.
1Broos P L. Prosthetic replacment in the management of unstable femoral neck fractures in the elderly. Analysis of the mechanical complications noted in 778 fractures [ J ]. Acta Chir Belg,2000, 99(21 ) :190 - 194.
