Asymmetric hip stem

Details Asymmetric hip stem Asymmetric hip stem

1996-05-24

1998-07-07

Isabella, David J.

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

Implantable prosthesis

Bone

A61F 232

Patent

active

057762040

ABSTRACT:
An improved asymmetric femoral hip stem component for use in cementless hip replacement procedures is described. The stem comprises a proximal region having a novel three-dimensional configuration to allow for better fit and stability of the stem within the femoral intramedullary canal with minimal removal of strong bone therefrom. The stem further includes a twist isolated in the mid-stem region to improve fit while minimizing enlargement of the femoral canal. A distal end comprising a rotated internal slot is also described, wherein the slot reduces bending stiffness of the stem in both the coronal and sagittal planes.

REFERENCES:
patent: 3996625 (1976-12-01), Noiles
patent: 4589883 (1986-05-01), Kenna
patent: 4714470 (1987-12-01), Webb, Jr. et al.
patent: 4718912 (1988-01-01), Crowninshield
patent: 4738681 (1988-04-01), Koeneman et al.
patent: 4778475 (1988-10-01), Ranawat et al.
patent: 4813963 (1989-03-01), Hori et al.
patent: 4895573 (1990-01-01), Koeneman et al.
patent: 5004476 (1991-04-01), Cook
patent: 5139522 (1992-08-01), Adrey et al.
patent: 5211666 (1993-05-01), Fetto
patent: 5358534 (1994-10-01), Dudasik et al.
"The S-ROM.TM. Total Hip System"--Joint Medical Products product brochure; (8 pages); 1989.
"Impact Modular Total Hip System"--Biomet product brochure; (19 pages); 1992.

Affiliated with

Also associated with

Rating

Asymmetric hip stem does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Asymmetric hip stem, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Asymmetric hip stem will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1200689