[Medium-term results in cement-free endoprosthetics: the Lord prosthesis].

In a clinical and radiological follow up 64 Lord-endoprostheses could be controlled after a meantime of 8.5 years. The positive judgement of the patients, which is caused by the reduction of pain, is in contrast to the poor improvement of gait and mobility. Radiological findings are suspicious for a higher rate of loosening of the cup and fractures of the shaft.