[Results with ceramic-on-ceramic sliding endoprosthesis completely or partially fixed without cement].

41 patients with ceramic total hip arthroplasty were followed up (on an average 2.8 years p. op., mean age 49.7 years). 9 prostheses were of type Lindenhof, 32 were of type Mittelmeier. In 27 cases cementless implantation was performed, 7 cases were reimplants. Hip scores according to Merle d'Aubigne reached 41 to 18 in 11 cases, 12 to 14 in 12 cases, and less than 12 in 17 cases. In cementless total hip arthroplasty a major problem appears to be associated with the anchorage of the femoral stem. Using a screw type fixation of the acetabular component seems to guarantee good anchorage, this was found also for reimplants. Doubts are raised about the use of ceramic on ceramic combination in arthroplasty.