Prosthesis stem for implantation into a bone cavity and prosthesis with this stem

Abstract

Abstract The stem (3) is hollow and has an elongate cross-section whose narrow sides (8, 9) form the lateral and the median shaft side and are intended to bear firmly against the bone. The broad sides (11, 12) are provided with openings (21). In this way, the thrust which takes place, upon bending on account of the load, at the interface between the bone (2) and the implanted stem (3) can be reduced, and the reliability of the bone-stem connection can be increased. In addition, regeneration of bone and marrow is made possible in the area of the openings (21). Bone chips and/or marrow introduced into the hollow cavity of the shaft can connect with the bone in the area of the openings (21). <IMAGE>

Inventors

• 👤 Kurt Karpf

Bibliographic Details