A prosthesis for replacing a portion of the anatomy including an outer bone engaging surface and an inner bearing surface. The prosthesis may include a rim disposed between the inner bearing surface and the outer bone engaging surface. The rim may include at least one contour operable to reduce loading...http://www.google.de/patents/US20070106391?utm_source=gb-gplus-sharePatent US20070106391 - Method and apparatus for reducing rim loading of an acetabular shell