Attentes et degré de satisfaction des patients en matière de prothèse totale de genou sur la base du questionnaire « Profex »

Abstract

BackgroundRecent studies have shown that patient reported outcome measures (PROM) may not completely reflect the satisfaction of patients with the intervention. The purpose of the study was to develop and validate a novel “Patient reported fulfillment of expectation” (PROFEX) questionnaire and to study the correlation between scores on PROM (patient reported outcome measures such as SF-36 and WOMAC) and the postoperative fulfillment of expectations. Patients and methodsIn this study, a novel 20-item “expectation” questionnaire was developed, validated and administered preoperatively to 523 patients who underwent total knee arthroplasty for osteoarthritis. The “fulfillment” questionnaire was administered 1 year following the operation. Physician-reported (Knee Society Scores) and patient-reported (WOMAC, SF-36) outcome measures were also administered. ResultsBoth components of PROFEX questionnaire were found to have good reliability and internal consistency. No significant correlation existed between post-operative fulfillment scores and the “improvement” scores of WOMAC, SF-36 and Knee Society scores. Lower preoperative expectations were associated with higher postoperative fulfilment scores, but the magnitude of this correlation was low. ConclusionsThe lack of correlation between the scores on PROM and the PROFEX scores shows that the scores on the PROM do not reflect the sense of fulfillment of the patients with the outcomes. Instruments that directly measure fulfillment of expectations are necessary to gain insight into the requirements of the patients. Level of evidenceLevel III: prospective comparative study.