Annual revision rates of partial versus total knee arthroplasty: A comparative meta-analysis

摘要: Abstract Background Utilization of unicompartmental knee arthroplasty (UKA) and patellofemoral (PFA) as alternatives to total (TKA) for osteoarthritis (OA) has increased. However, no single resource consolidates survivorship data between TKA partial resurfacing options each variant OA. This meta-analysis compared medial UKA (MUKA), lateral (LUKA) PFA using annual revision rate a standardized metric. Methods A systematic literature search was performed studies quantifying TKA, MUKA, LUKA and/or implant survivorship. Studies were classified by evidence level assessed bias the MINORS PEDro instruments. Annual rates calculated procedure percentages/observed component-year, based on Poisson-normal model with random effects R-statistical software package. Results One hundred twenty-four (113 cohort 11 registry-based studies) met inclusion/exclusion criteria, providing 374,934 arthroplasties 14,991 revisions. The overall low, 96.7% III–IV. lowest (0.49%, CI 0.41 0.58), followed MUKA (1.07%, 0.87 1.31), (1.13%, 0.69 1.83) (1.75%, 1.19 2.57). No difference detected ( p  = 0.222). Conclusions Revisions occur at an 2.18, 2.31 3.57-fold that respectively. These estimates may be used inform clinical decision-making, guide patient expectations evaluate cost-effectiveness versus replacement in setting