2[2]Muller ME. Manual of Internal Fixation[M].Techniques Recommened by the A0-ASIF Group,Springer-rerlag Berlin Heidellarg,1991.68,12.
3Heyet DL,Lorich.Retrograde intramedullary nailind of supra condy lar gemoral fractures.Clin orthop,1998,350(1):80-84.
4Mulle EJ.Osterman PAW,WILK M,et al.Fixation ofdistal femoral fraetures with a retngrade in tramedullary interlocking nail.Injury,1999,30(1):31-36.
5Decoster TA,Brown G,Robinson B.Retrograde nailing of femurshaft fractures for special indications:ten years experience.Orthop Trans,1997-1998,21(12):1353-1356.