Unicompartmental knee replacement in osteoarthritis: an 8-year follow-up.

Between 1972 and 1974, 34 patients with medial osteoarthritis in the knee were operated on with unicompartmental femorotibial replacement. Four patients were reoperated on, three of whom had had a McIntosh inlay prior to the operation. Seven patients had died and two were lost at the follow-up which took place on average 8 years (7-10 years) after the operation. Of 21 re-examined knees, 14 were rated as successful or acceptable.