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Objective:To evaluate the clinical outcome of traumatic subtrochanteric fractures fixed with long proximal femoral nail (PFN) or long gamma nail with particular emphasis on our experience of surgical techniques.Materials and Methods:We reviewed the results of 49 consecutive patients who had undergone intramedullary fixation specifically with a long proximal femoral nail (PFN) or a long gamma nail for traumatic subtrochanteric fractures in our hospital during a two-year period from January 2003 to December 2004.The average patient age was 53 years.Clinical and radiographic analyses were performed when follow-up was made at 6 weeks,12 weeks,6 months,1 year and 2 years.