Abstract: ObjectiveTo investigate the clinical effect of dynamic hip screw (DHS) combined with continuous passive motion (CPM) on intertrochanteric fractures in old patients.MethodsThirty-six old patients with intertrochanteric fractures were treated with DHS internal fixation and began to exercise isometric contraction of quadriceps femoris and to move the big joints of affected limb with CPM machine on the 3rd day after operation.ResultsAll the patients were averagely followed-up for 14 months. According to the effective standard, 26 cases were excellent, 9 cases good and 1 case poor with a 97.2 percentage of fineness. All fractures healed well with no loosening and dislocation of internal fixation. Only one case with type of Evans Ⅲ remained less hip inversion.ConclusionDHS is a good method to treat intertrochanteric fractures of old patients under good preoperative disposal.

Key words: intertrochanteric fracture, dynamic hip screw (DHS), internal fixation, continuous passive motion (CPM)