A knee prosthesis for surgical implantation to a patient's leg bone at the knee joint area includes a prothesis body portion that extends transversely relative to the patient's intramedullary canal for carrying a bearing surface that articulates with the patient's adjacent leg bone or with another prosthesis...http://www.google.fr/patents/US5593449?utm_source=gb-gplus-shareBrevet US5593449 - Dual taper stem extension for knee prosthesis
