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Joint Bone Spine
Volume 78, n° 4
pages 383-386 (juillet 2011)
Doi : 10.1016/j.jbspin.2010.11.013
accepted : 15 October 2010
Factors predicting patient satisfaction 2 years after total knee arthroplasty for osteoarthritis
 

Florence Merle-Vincent a, , Chantal M. Couris b, Anne-Marie Schott b, Thierry Conrozier a, Muriel Piperno a, Pierre Mathieu a, Éric Vignon a

on behalf as the Osteoarthritis Section of the French Society for Rheumatology80, rue de l’Abbé-Groult, 75015 Paris, France

a Rhumatologie, pavillon 2B, CHLS, 69495 Pierre-Bénite cedex, France 
b Civils de Lyon, pôle information médicale évaluation recherche, université Lyon, 162, avenue Lacassagne, 69424 Lyon cedex 03, France 

Corresponding author. Tel.: +33 478 861 218.
Abstract
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 27kg/m2 (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).

The full text of this article is available in PDF format.

Keywords : Knee, Osteoarthritis, Total knee replacement, Lequesne index, WOMAC score




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