Patent ID: 7833277

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, said body having a threaded bore; a plurality of spacers of varying thickness, 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 including one of an external tapered portion or an internal tapered bore, said externally threaded portion being adapted to be threadably engaged with said threaded bore of said body of said femoral head; wherein said first neck is adapted to extend outwardly from said femoral head in various lengths, each length corresponding 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 having a second neck including the other of said external tapered portion or said internal tapered bore, said other of said external tapered portion or said internal tapered bore of said femoral hip stem sized to engage said one of said external tapered portion or said internal tapered bore of said first neck to form a Morse taper connection between said femoral hip stem and said first neck.