A unicompartmental knee prosthesis for implantation into a knee joint includes a body having a substantially elliptical shape in plan and a pair of contoured opposed faces including a first face and a second face, the second face including a concave surface. The prosthesis is free of fixation to a permanent...http://www.google.fr/patents/US8128697?utm_source=gb-gplus-shareBrevet US8128697 - Proportioned surgically implantable knee prosthesis
