[Etiopathogenesis of loosening after total hip replacement (author's transl)]

We analyzed 30 cases of loosening of different hip-totalendoprotheses (Weber-Huggler, Müller-Charnley, McKee-Ferrar and Brunswick), intraoperative known as aseptic loosening. Especially is shown that also by those protheses with a part of polyäthylen there is the same histological picture as by those protheses of Weber-Huggler with the head of polyester: "the aggressive Granuloma". There is only a gradually difference and the "maligne Osteolysis" was not so excessive.