This study will investigate the effects of implantation of cemented femoral stem versus
percutanous internal fixation with cannulated compression screws on hip joint function
recovery, pains, femoral head collapse and sterile prosthesis loosening, peri-prosthesis
infection, and the histocompatibility of prosthesis material with host tissue in the elderly
patients with osteoporotic fracture of proximal femoral neck complicated by avascular
necrosis of the femoral head, which will provide scientific evidence for selecting surgical
methods and internal fixation/artificial prosthesis material for osteoporotic fracture of
proximal femoral neck in the elderly patients.