Patent ID: 7931691

Claim:
An external femoral prosthetic component for housing the outside of a remnant of natural proximal femur and coupling with articulation components for use in total hip arthroplasty comprising: A) a hollow shell having a distal opening adapted to attach to a natural proximal femoral neck of a patient and an oppositely extending proximal end, said hollow shell further comprising a neck portion attached to the proximal end of said hollow shell, said hollow shell being an asymmetrical bell-shaped cup with a distal wide opened cavity, said hollow shell further comprising at least one elongated leg rigidly attached to a distal portion of said hollow shell, said elongated leg and said hollow shell together being a one-piece monolithic component, wherein said hollow shell and elongated leg function to increase effort moment of said shell when implanted into said patient by distributing patient loading force on the shell into a shaft of the proximal femur; and B) a plurality of tension anchoring means adapted to mechanically fasten said shell onto said remnant of proximal femur by interlocking mechanisms.