ObjectiveTo investigate the lateral wall protection skills for aged femoral intertrochanteric fractures fixed with proximal femoral nail antirotation (PFNA). MethodsSixty aged patients with femoral intertrochanteric fractures were treated with PFNA between March 210 and January 2011.According to Evans classification,31 were type Ⅰc,18 were Ⅰd,and 11 were type Ⅱ.Several skills were applied to prevent the breaking of the lateral wall.Post-operative complications,bone union and recovery of hip function were recorded. ResultsThe patients were followed up for 12 to 18 months.All fractures were healed without infection or failure of internal fixation. ConclusionPFNA is a good choice for the clinical treatment of unstable femoral intertrochanteric fractures in aged patients.To obtain better clinical result,the lateral wall must be considered and well protected.