6Merenyi G, Kovacs A, Zagh I. Preliminary experience with Gamma nails. Magy Traumatol Ortop Kezseb Plasztikai, 1994, 37:319.
7Gundle R,Gargan MF,Simpson AH.How to minimize failures of fixation of unstable intertrochanteric fractures.Injury,1995,26:611
8Harrington KD,Johnston JO.The management of comminuted unstable interochanteric fractures[J].J Bone Joint Surg (Am),1973,55(7):1367.
9Zuckerman JD,Skovron MI,Koval K J,et al.Postoperative complication and mortality associated with operative delay in old patients who have fracture of the hip[J].J Bone Joint Surg(Am),1995,77:1551.