354. Experimentelle Untersuchungen zur Einheilung zementfreier Schaftendoprothesen mit sogenannter madreporischer Oberfläche

In the implantation without cement of total endoprostheses, implants of different surface reliefs have been used more frequently. In adult dogs (n = 9) total replacement of the left hip has been performed using an implant, the femoral compartment of which had a so-called madrepore-like surface. In the radiological follow-ups as well as in histological and microangiographic investigations 6 months after operation an ingrowth of bone with only a small interface could be seen even between the balls of the madrepore-like surface, whereas smooth surfaces showed a broad interface of connective tissue. Scintigrams indicate that bone healing around the implants is complete 10-15 weeks after the operation.