Patent ID: 7357817
Filing Date: 2008-04-15
Classification: A61F

Abstract:
1. A modular tibial implant comprising: a tibial baseplate having a medial side, a lateral side an anterior side and a posterior side with a plate having a bone contacting surface and a superior surface extending between said sides of said plate, said plate including an opening therein; a modular bone engagement element in the form of a keel or stem having a distal bone engaging portion and a proximal coupling portion for insertion into and through said opening in said plate wherein said proximal coupling portion on said keel or stem has a dovetail shape, the dovetail having a pair of angled surfaces capable of being oriented in a medial-lateral direction; a coupling element for engaging said proximal coupling portion of said bone engagement element after the bone engaging element has been inserted through said opening to prevent disassembly thereof, said coupling element capable of being inserted in a direction offset from the anterior-posterior direction after said bone engaging element and baseplate have been implanted; and a polymeric bearing insert for placement on said baseplate having a recess for receiving said coupling element.