The Oxford unicompartmental knee prosthesis: a 2-14 year follow-up

Our medium- and long - term results obtained with the Oxford unicompartmental knee prosthesis for unicompartmental knee osteoarthrosis are presented. Ninety seven prostheses were evaluated ( 87 medial, 10 lateral) in 86 patients, with the Hospital for Special Surgery knee score after 2 - 14 years ( mean follow-up: 6 years 9 months). Five prostheses were lost to follow-up. Eight patients died, not related to surgery; none had undergone a revision. Fourteen revisions ( of which one bilateral UKP), 11 medial and three lateral, were performed. The mean HSS score of the 69 UKPs was 178.8 ( 80% excellent, 10% good, 4% fair, 6% poor). These findings confirm the good results reported in other studies, regarding proper patient selection and a consistent operative technique.