Patent ID: 8858642
Filing Date: 2014-10-14
Classification: A61F

Abstract:
1. A knee joint prosthesis assembly comprising: a femoral component having a medial and a lateral condyle portion connected by a patellar track portion, the femoral component forming an opening between the medial and lateral condyles; a unitary tibial component having a medial portion that includes a first engagement structure and a lateral portion that includes a second engagement structure; a medial bearing having a third engagement structure formed thereon that selectively engages the first engagement structure; and a lateral bearing separately formed and independent from the medial bearing and having a fourth engagement structure formed thereon that selectively engages the second engagement structure; wherein one of the medial and lateral bearings is fixed relative to the tibial component and the other of the medial and lateral bearings is a mobile bearing component; wherein the mobile bearing component includes: