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J Arthroplasty. 2011 Jun;26(4):615-20. doi: 10.1016/j.arth.2010.04.026. Epub 2010 Jun 11.

Quality of life outcomes in revision versus primary total knee arthroplasty.

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Department of Orthopaedics, University of British Columbia, Laurel Pavilion, Vancouver, BC, Canada.


The purpose of this study was to evaluate and compare the quality of life and satisfaction outcomes of patients undergoing primary and revision total knee arthroplasty (TKA). Sixty revision and 199 primary TKA patients were assessed using the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC), Oxford-12 Knee Score, Short Form-12, and patient-reported satisfaction. Baseline preoperative scores demonstrate that revision TKA patients have inferior quality of life across all measures (WOMAC, Oxford-12, and Short Form-12) in comparison with primary TKA patients (P < .05). At follow-up revision, TKA patients continue to have inferior outcomes (P < .05) in comparison with primary TKA patients. When adjusting for confounding factors in regression analyses, revisions are inferior to primary TKA by 8.6 (95% confidence interval, 2.7-14.6) normalized WOMAC units.

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