Orthopaedic hip prosthesis having femoral stem components with varying A/P taper angles

摘要

A femoral prosthesis for use during performance of a hip replacement procedure includes a plurality of femoral stem components in a range of various sizes and a plurality of femoral head component in a range of various sizes. The anterior/posterior stem taper angle of the femoral stem component varies across its range of sizes.

主权项

1. An implantable orthopaedic hip prosthesis assembly, comprising:
a femoral head component configured to articulate with a natural or prosthetic acetabulum of a patient, the femoral head component having a tapered bore formed therein, and a plurality of femoral stem components having a tapered trunnion configured to be separately received into the tapered bore of the femoral head component, wherein each of the plurality of femoral stem components has (i) a trunnion taper angle and diameter that is the same as each of the other of the plurality of femoral stem components, and (ii) an anterior/posterior stem taper angle that is different from at least some of the other of the plurality of femoral stem components, wherein a first femoral stem component of the plurality of femoral stem components (i) is longer than a second femoral stem component and a third femoral stem component of the plurality of femoral stem components, (ii) has a larger anterior/posterior stem taper angle than the second femoral stem component of the plurality of femoral stem components, and (iii) has an anterior/posterior stem taper angle that is the same as the third femoral stem component of the plurality of femoral stem components.