2Bray TJ. Femoral neck fracture fixation:clinical decision making[J]. Clin Orthop,1997,339:20-31.
3Bout CA, Canegieler DM, Juttmann JW. Percutaneous eannulated screw fixation of femoral neck fractures: the three point principle[J].Injury, 1997,28(2):135-139.
4Thomgren KG, Hommed A, Nomman PO,et al. Epidemlology of Femoral neck fractures [J]. Injury, 2002,33 (suppl) : 1-7.
5Lindequist S, Malmqvist B, Ullmark G. Fixation of femo ral neck fracture prospective comparison of von Bahr screws,Gouffon screws, and Hessel pins[J]. Acta Orthop Scand,1998,60(3):293-298.
