4Gurusamy K, Parker M J, Rowlands T K. The complications of displaced intracapsular fractures of the hip: the effect of screw positioning and angulation on fracture healing [ J ]. J Bone Joint Surg Br,2005,87 (5) :632 - 634.
5Lee KB,Howe TS,Chang HC.Cancellous screw fixation for femoral neck fractures:one hundred and sixteen patients.Ann Acad Med Singapore,2004,33:248-251.
6Maurer SG,Wright KE,Kummer F J,et al.Two or three screws for fixation of femoral neck fractures? Am J Orthop,2003,32:438-442.
7Nikolopoulos KE,Papadakis SA,Kateros KT,et al.Long-term outcome of patients with avascular necrosis,after internal fixation of femoral neck fractures.Injury,2003,34:525-528.
8Bachiller FG,Caballer AP,Potal LF.Avascular necrosis of the femoral head after femoral neck fracture.Clin Orthop,2002,(339):87-109.
10Beris AE,Payatakes AH,Kostopoulos VK,et al.Non-union of femoral neck fractures with osteonecrosis of the femoral head:treatment with combined free vascularized fibular grafting and subtrochanteric valgus osteotomy.Orthop Clin North Am,2004,35:335-343.
