[Biarticular endoprostheses of the hip. 2 years of experience].

After briefly illustrating indications and biomechanical concepts of biarticular endoprostheses of the hip in the treatment of medial fractures of the femoral neck, a personal series from December 1985 to March 1988 is presented. 55 of 82 operated patients were followed up on the basis of purely clinical criteria, particular attention being paid to general preoperative conditions, the recovery of function and the rate of postoperative mortality. In conclusion, it is recalled that prognosis in fractures of the femoral neck is severe for generally gerontological reasons and the usefulness of biarticular endoprosthesis in the prevention of cotyloid wear and tear is underlined.