Joint replacement prosthesis component with non linear insert

摘要

According to one embodiment of the present invention, there is provided a joint prosthesis ( 10 ) having a first component ( 12 ) for cooperation with a first long bone ( 14 ) and a second component ( 16 ) for cooperation with a second long bone ( 20 ). The joint prosthesis ( 10 ) further includes a bearing component ( 22 ) positionable between the first component ( 12 ) and the second component ( 16 ) and cooperable with the first component ( 12 ) and the second component ( 16 ). The bearing component ( 22 ) includes a reinforcing component ( 36 ) having a first portion ( 54 ) defining a first centerline ( 50 ) and having a second portion ( 56 ) defining a second centerline ( 52 ). The first centerline ( 50 ) and the second centerline ( 52 ) are non-coincidental. The bearing component ( 22 ) includes a polymeric material ( 112 ) surrounding the reinforcing component ( 36 ) and molded to the reinforcing component ( 36 ). The bearing component ( 22 ) defines a first peripheral region ( 34 ) adjacent the first portion ( 54 ) of the reinforcing component ( 36 ) and a second peripheral region ( 82 ) adjacent the second portion ( 56 ) of the reinforcing component( 36 ). The first peripheral region ( 34 ) cooperates with first component ( 12 ) and the second peripheral region ( 82 ) cooperates with the second component ( 16 ).