Patent ID: 8460392
Filing Date: 2013-06-11
Classification: A61F

Abstract:
1. An implantable orthopaedic knee prosthesis assembly, comprising: a femoral component having medial condyle surface and a lateral condyle surface, a dome patella component having a posterior bearing surface comprising (i) a medial articular surface configured to articulate with the medial condyle surface of the femoral component, and (ii) a lateral articular surface configured to articulate with the lateral condyle surface of the femoral component, and an anatomic patella component having a posterior bearing surface comprising (i) a medial articular surface configured to articulate with the medial condyle surface of the femoral component, and (ii) a lateral articular surface configured to articulate with the lateral condyle surface of the femoral component, wherein, when both patella components are viewed in coronal cross sectional views, the medial and lateral articular surfaces of the anatomic patella component are congruent with the medial and lateral articular surfaces of the dome patella component; wherein, when viewed in a sagittal cross sectional view, the lateral articular surface of the anatomic patella component conforms to the lateral condyle surface of the femoral component; and wherein, when viewed in a sagittal cross sectional view, the medial articular surface of the anatomic patella component is non-conforming with the medial condyle surface of the femoral component.