[Personal experiences with uncemented prostheses].

Experience with different types of non-cemented total hip endoprostheses is critically discussed. Three radiological criteria of a good result indicated: the presence of radiolucent lines, cancellous transformation, and a particular appearance and thickness of the cortex. The radiological changes and clinical results make it possible to draw a 'survival curve' for each type of implant.

[When in surgery of the locomotor system is preoperative shaving indicated?].

Shaving the day before operation is safe only if it is combined by an adequate disinfection with Jodophoren and followed by sterile packing of the operation field.

[Initial results with the AO Dynamic Hip Screw (DHS)].

The report is based on a follow-up of over 54 osteosyntheses employing the Dynamic Hip Screw (DHS) of the AO on the proximal femur. The patients, of an average age of 72 years, exhibited the following lesions: fractures of 7 femoral necks, 43 fractures in the pertrochanteric region, 3 reverse fractures and 1 subtrochanteric metastasis. An unstable fracture was present on 26 occasions.

Surface replacement hip arthroplasty with the Freeman double cup.

The authors report their clinical experience with 43 hip arthroplasties using Freeman's double femoral cup. The patients were followed up from 3 to 6 years after operation. At that time, only 44% were totally free from pain, while migration of the femoral cup, which was severe and progressive, was observed radiographically in almost half the cases.