A modular knee prosthetic system used to replace the natural knee and including two distal posterior femoral components and one patellar-femoral joint component. The components have a smooth outer condylar surface and an inner bone-engaging surface and are connectable to form either an unicompartmental...http://www.google.es/patents/US6749638?utm_source=gb-gplus-sharePatente US6749638 - Modular knee prosthesis
