A posterior stabilized knee prosthesis includes a femoral component formed by medial and lateral condyles, each having an anterior portion, a distal portion and a posterior portion, an anterior patella flange interconnecting the anterior portions of the medial and lateral condyles in parallel, spaced...http://www.google.de/patents/US5236461?utm_source=gb-gplus-sharePatent US5236461 - Totally posterior stabilized knee prosthesis
