Screw-fixed femoral component for hip joint prosthesis

Details Screw-fixed femoral component for hip joint prosthesis Screw-fixed femoral component for hip joint prosthesis

1993-07-14

1995-10-17

Isabella, David

Prosthesis (i.e., artificial body members), parts thereof, or ai

Implantable prosthesis

Bone

606 62, 606 69, A61F 232

Patent

active

054586542

ABSTRACT:
The femoral component for a hip joint prosthesis has an intramedullary stem having a free distal region, a proximal region extending to a neck for receiving a ball head, a medial side and a lateral side.
The stem has screw holes extending from said lateral side to said medial side for receiving bone screws in the lateral to medial direction for fixation of said stem to the medial cortex. The stem is coupled primarily to the medial cortex of the femur and only secondarily to the cancellous portion of the proximal femur to aid the rotational (torsional) stability of the implant.

REFERENCES:
patent: 4080666 (1978-03-01), Fixel
patent: 4129903 (1978-12-01), Huggler
patent: 4530115 (1985-07-01), Muller et al.
patent: 4775381 (1988-10-01), Tari et al.
patent: 4827917 (1989-05-01), Brumfield
patent: 4921501 (1990-05-01), Giacometti
patent: 5041114 (1991-08-01), Chapman et al.
patent: 5053036 (1991-10-01), Perren et al.
patent: 5108449 (1992-04-01), Gray
patent: 5122141 (1992-06-01), Simpson et al.
patent: 5167666 (1992-12-01), Mattheck et al.

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