title: Effect of retaining a patellar prosthesis on pain, functional, and satisfaction outcomes after revision total knee arthroplasty.
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.
authors.affiliation: Division of Lower Limb Reconstruction and Oncology, Department of Orthopaedics, University of British Columbia, Vancouver, British Columbia, Canada.
authors.forename: Bassam A
authors.initials: BA
authors.lastname: Masri
authors.forename: R M Dominic
authors.initials: RM
authors.lastname: Meek
authors.forename: Nelson V
authors.initials: NV
authors.lastname: Greidanus
authors.forename: Donald S
authors.initials: DS
authors.lastname: Garbuz
mesh_terms: D000368:Aged; D019645:Arthroplasty, Replacement, Knee / Q000379:methods*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007595:Joint Prosthesis; D007719:Knee Joint / Q000503:physiopathology; D007720:Knee Prosthesis; D008297:Male; D010149:Postoperative Pain; D010329:Patella; D017060:Patient Satisfaction; D012086:Reoperation; D016896:Treatment Outcome