[Experiences using the rotation femur head prosthesis in the treatment of medial femoral neck fractures in geriatric patients].

We report upon 167 fractures of the medial femoral neck (166 patients aged 82 years on average) that were treated by hemialloarthroplasty (trunnion hip prosthesis Allo-Pro). 94 patients were followed-up from three to 53 months (average 18 months) postoperatively. 67 patients regained their full physical activity. This operative technique is indicated in fractures with high risk of femoral head necrosis and in patients with reduced physical conditions. We see the advantage of hemialloarthroplasty in the relatively small operative trauma and the possibility of early mobilization.