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BACKGROUND In the United States intertrochanteric and pertrochanteric fractures occur at a rate of more than 150,000 cases annually. Current standard of care for these fractures includes fixation with either a cephalomedullary nail (CMN) or a sliding hip screw (SHS). The purpose of this study was to compare failure and medical complications of intertrochanteric femoral fractures repaired by CMN or SHS. METHODS This study is a retrospective cohort study that included 249 patients with AO/OTA 31 A1.1-3, 31 A2.1-3 nonpathological fractures of the femur, of which 137 received CMN and 112 received SHS. Analysis was stratified by fracture type as stable (AO 31A1.1-2.1) or unstable (AO 31A2.2-3). RESULTS The tip-apex distance in stable fractures fixed with CMN was 17.3 ± 5.9 compared to 26.2 ± 7.9 in the stable SHS group (p 0.05). Among patients with unstable fractures CMN had significantly less collapse (P < 0.001) and failure (P = 0.046) but no difference in complications (P = 0.126) or mortality (P = 0.586). CONCLUSIONS There were no significant differences in failure or complication rates when comparing the CMN to the SHS in stable intertrochanteric fractures. CMN demonstrated significantly reduced failure and collapse rates in unstable intertrochanteric fractures when compared to SHS; however, this study had a relatively small sample size of unstable fractures and all results must be interpreted within this context.