Revision of unicondylar knee replacements to total knee replacement

Abstract

The outcome of 23 Oxford unicondylar knee replacements revised to total knee replacements was assessed with an average follow up of 4.1 years. At revision, 30% of the cases had required reconstruction for bone deficiency. Bone graft, when needed, was obtained from the revision cuts. One patient required re-revision for recurrent sepsis. The remainder included 10 excellent, 3 good, 2 fair and 2 poor results. The poor results were because of instability which could have been prevented by using a more constrained implant. Revision of unicondylar knee replacement is technically easier and results superior to the revision of total knee replacement.