Patent ID: 7306629

Claim:
An assembly, comprising a femoral head assembly connectable to a femoral hip stem, the assembly comprising: a femoral head having a body with a spherical outer surface adapted to articulate within an acetabular component, the body having a threaded bore; a plurality of spacers of varying thicknesses, at least one of said plurality of spacers adapted to be inserted into the threaded bore; a first neck having an externally threaded portion and an internal bore, said internal bore having a tapered cylindrical shape, said externally threaded portion being adapted to be threadably engaged with said threaded bore of said body of said femoral head; wherein the first neck is adapted to extend outwardly from said femoral head in various lengths, wherein each length corresponds to the thickness of said at least one of said plurality of spacers inserted into the threaded bore; and a femoral hip stem, said femoral hip stem comprising a second neck having a tapered outer surface that is adapted to be positioned in said tapered, cylindrical-shaped internal bore in said first neck to thereby form a Morse taper connection.