Article

OBJECTIVE: To identify factors predicting patient satisfaction 2 years after
total knee arthroplasty (TKA) for osteoarthritis. METHODS: Prospective
multicenter study of patients followed up for 2 years after TKA for
osteoarthritis. We evaluated pain and function (Lequesne index and WOMAC) at
baseline and after 2 years. After 2 years, the patients rated their satisfaction
as a percentage, with values greater than 50% defining good satisfaction. Factors
associated with good satisfaction were identified by univariate analyses followed
by multivariate analysis. RESULTS: Of 299 patients, 264 completed the study (26
were lost to follow-up, six died, and three refused the 2-year evaluation),
including 237 (89.8%) with satisfaction scores greater than 50%. Highly
significant improvements were found after 2 years versus baseline in the Lequesne
index (7.9 vs. 14.5, P<0.0001) and WOMAC index (26.3 vs. 51.3, P<0.0001). There
were 26 (9.8%) complications. Factors significantly associated with good
satisfaction in the multivariate model were absence of complications (P=0.004),
body mass index less than 27 kg/m(2) (P=0.015), high radiological joint narrowing
score (P=0.038), age greater or equal to 70 years (P=0.038), and absence of
depression at the 2-year evaluation (P=0.002). CONCLUSION: We report the first
prospective multicenter study done in France to assess pain and function in a
large number of patients treated with TKA for osteoarthritis. Our results
indicate a high success rate. We identified three factors that predict patient
satisfaction and can be assessed before surgery (age greater than 70 years,
absence of obesity, and severe joint space narrowing).
CI - Copyright (c) 2010. Published by Elsevier SAS.

Langue : ANGLAIS