Proximal femoral replacement implant and method of implanting the same

Abstract

An implant and method for replacement of the proximal portion of a femur, and specifically for replacement of the natural femoral head is provided. The implant includes a body member for insertion, in use, through the natural femoral neck and in substantial alignment therewith, a head member with a spherical portion for engagement with a natural or a prosthetic hip socket, and an optional sleeve for altering the position of the spherical portion of the head member relative to the body member. The body member may also include a collar designed to rest on the resected surface of the remaining intact natural femoral neck. A member for joining the head member to the body member is further provided which may integrally join the head and body members or, where the implant is comprised of modular components, the joining member may be in the form of a protrusion or a recess on the body member for engaging a complementary recess or protrusion, respectively, on the head member. The method for implanting the femoral head includes rotating a cutting portion of a reamer into engagement with the lateral side of the femur and along the axis of the femoral neck, morselizing the natural femoral neck with a reamer, and inserting the implant into the passage at the lateral side of the femur.

Dependencies are inferred from the claim text.