Knee prosthesis having cross-compatible dome and anatomic patella components

An implantable orthopaedic knee prosthesis assembly, comprising:

• a femoral component having a medial condyle surface and a lateral condyle surface,
• a dome patella component having a posterior bearing surface configured to articulate with the medial condyle surface and the lateral condyle surface of the femoral component, and
• an anatomic patella component having a posterior bearing surface configured to articulate with the medial condyle surface and the lateral condyle surface of the femoral component,
• wherein, when viewed in a sagittal cross sectional view through the lateral condyle surface of the femoral component, (i) the posterior bearing surface of the anatomic patella component conforms to the lateral condyle surface of the femoral component, and (ii) the posterior bearing surface of the dome patella component is non-conforming with the lateral condyle surface of the femoral component, and
• wherein, when viewed in a sagittal cross sectional view through the medial condyle surface of the femoral component, (i) the posterior bearing surface of the anatomic patella component is non-conforming with the medial condyle surface of the femoral component, and (ii) the posterior bearing surface of the dome patella component is non-conforming with the medial condyle surface of the femoral component.

An implantable orthopaedic knee prosthesis assembly, comprising:

• a plurality of femoral components, each of which has a medial condyle surface and a lateral condyle surface,
• a plurality of dome patella components configured to be separately positioned in contact with the condyle surfaces of each of the plurality of femoral components, wherein each of the plurality of dome patella components has (i) a medial/lateral width that is different from at least some of the other of the plurality of dome patella components, and (ii) a posterior bearing surface having a medial articular surface configured to articulate with the medial condyle surface of each of the plurality of femoral components and a lateral articular surface configured to articulate with the lateral condyle surface of each of the plurality of femoral components, and
• a plurality of anatomic patella components configured to be separately positioned in contact with the condyle surfaces of each of the plurality of femoral components, wherein each of the plurality of anatomic patella components has (i) a medial/lateral width that is different from at least some of the other of the plurality of anatomic patella components, and (ii) a posterior bearing surface having a medial articular surface configured to articulate with the medial condyle surface of each of the plurality of femoral components and a lateral articular surface configured to articulate with the lateral condyle surface of each of the plurality of femoral components.