Patent ID: 7947082
Filing Date: 2011-05-24
Classification: A61F

Abstract:
1. An orthopaedic prosthesis comprising: a first component comprising a base with a keel and a peg protruding from the base to extend into a first bone, wherein the keel is longer than the peg, the keel having a longitudinal axis medial-laterally offset from a geometric center of the base, the base having a first articular surface; a post protruding from the base extending in an opposite direction from the keel, wherein the post is not coaxial with the keel; a bearing component comprising a second articular surface shaped to articulate with the first articular surface, and a third articular surface shaped to articulate with a fourth articular surface on a second bone; and wherein the post comprises a unitary snap feature shaped to snap into engagement with the bearing component in response to motion of the bearing component along an axis of the post; wherein the bearing component further comprises a bore and a ramped channel, wherein the channel extends from the bore of the bearing component to a periphery of the bearing component allowing the bearing component to self-align as it is slid into place over the post; and wherein the bearing component further comprises a cutout abutting both sides of the ramped channel, wherein the cutout extends in a medial-lateral direction from both sides of the ramped channel, wherein the cutout is in communication with the periphery, wherein the cutout is wider than the ramped channel.