Adverse outcomes after total and unicompartmental knee replacement in 101330 matched patients: A study of data from the National Joint Registry for England and Wales

Background Total knee replacement (TKR) or unicompartmental knee replacement (UKR) are options for end-stage osteoarthritis. However, comparisons between the two procedures are confounded by differences in baseline characteristics of patients undergoing either procedure and by insufficient reporting of endpoints other than revision. We aimed to compare adverse outcomes for each procedure in matched patients