Abstract
It remains controversial whether patients' pain, function, and satisfaction are affected in revision total knee arthroplasty by patellar prosthetic resurfacing. This is a retrospective, comparative cohort study to evaluate this. One hundred twenty-six patients who underwent total knee arthroplasty revision were identified. After revision, the presence or absence of a patellar prosthesis was ascertained. At a minimum of 2 years' follow-up, pain and function were assessed by Western Ontario and McMaster Universities Osteoarthritis Index, Oxford-12, Short-Form 12, and patient satisfaction questionnaires in 110 patients (58 with patellar component, 52 bony shell). Univariate and multivariate analyses demonstrated no significant difference between the 2 cohorts for Western Ontario and McMaster Universities Osteoarthritis Index pain, function, Oxford-12, and satisfaction outcomes. The absence of a patellar prosthesis does not appear to significantly affect pain, function, or satisfaction outcomes after revision total knee arthroplasty.
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