Femoral prosthesis with wedge having opposed tapers

Details Femoral prosthesis with wedge having opposed tapers Femoral prosthesis with wedge having opposed tapers

1993-10-21

1996-01-02

Isabella, David

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

Implantable prosthesis

Bone

623 16, A61F 232, A61F 228

Patent

active

054804523

ABSTRACT:
A prosthesis having a proximal portion of a stem formed as a wedge having opposed tapers such that prostheses can be thrust into a medullary canal and achieve fixation without unduly stressing the cortical bone remaining in the femur. Ribs secure the prosthesis against medial-lateral motion. Simultaneously, a degree of flexibility is provided in an anterior-posterior direction. A slotted distal portion of the stem is flared to enhance fixation distally.

REFERENCES:
patent: 3466670 (1966-05-01), Christiansen
patent: 4404693 (1983-09-01), Zweymuller
patent: 4608053 (1986-08-01), Keller
patent: 4645506 (1987-02-01), Link
patent: 4718916 (1988-01-01), Morscher
patent: 4904269 (1990-02-01), Elloy et al.
patent: 4911722 (1990-03-01), Crespy
patent: 4936863 (1990-06-01), Hofmann
patent: 4944761 (1990-07-01), Stuhmer et al.
patent: 4997444 (1991-03-01), Farling
patent: 5316550 (1994-05-01), Forte

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