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Unicompartmental knee arthroplasty. A 4.5-6-year follow-up study with a metal-backed tibial component.

Unicompartmental knee arthroplasty. A 4.5-6-year follow-up study with a metal-backed tibial component.

Authors :
Kozinn SC
Marx C
Scott RD
Source :
The Journal of arthroplasty [J Arthroplasty] 1989; Vol. 4 Suppl, pp. S1-10.
Publication Year :
1989

Abstract

The results in the first 50 patients to receive an improved-design unicompartmental knee prosthesis were reviewed after an average follow-up period of 5.5 years. The prosthesis is composed of a metal-backed polyethylene tibial component and a wide femoral surface replacement that are fixed to bone with acrylic cement. Forty-five patients with 55 unicompartmental knee arthroplasties were available for clinical study. Ninety-two percent of the knees were rated as having a good or excellent result, and 94% had lasting relief of pain. There have been no failures requiring revision. A radiographic review demonstrated that no tibial component was bordered by a complete radiolucent line. There was no subsidence or loosening of either the tibial or femoral components, and there was no instance of local osteolysis. These results, coupled with a 14-year follow-up experience with the original-design unicondylar prosthesis, encourages the authors to remain advocates of this procedure in selected patients with unicompartmental osteoarthritis.

Details

Language :
English
ISSN :
0883-5403
Volume :
4 Suppl
Database :
MEDLINE
Journal :
The Journal of arthroplasty
Publication Type :
Academic Journal
Accession number :
2584981
Full Text :
https://doi.org/10.1016/s0883-5403(89)80001-4