[Cement-free implanted total hip endoprosthesis of the Mittelmeier model. Clinical experiences and results following 6 years of use mainly in accident-induced hip changes].

We give a review of the results of 165 implantations in 143 patients. Uncemented endoprostheses (type Mittelmeier) for replacement of hip joints were implanted from September 1979 to December 1985 at the Berufsgenossenschaftliche Unfallklinik Frankfurt/Main. When we started to implant uncemented prostheses the complication rate was higher than in conventional implantations. Most of the complications could be gradually avoided. The current complication rate is equal in both procedures. Long-term results will be known in a few years' time. We will they also know whether the method is advantageous for younger patients.