Development and validation of the French version of a tool assessing patient's expectations in lower limb osteoarthritis

Objective: The Hospital for Special Surgery (HSS) Hip Replacement Expectations Survey and
<br />Knee Replacement Expectations Survey are validated tools developed to measure patients'
<br />preoperative expectations for hip and knee arthroplasty. These instruments have possible
<br />uses in both daily practice and research. Our objective was to assess the test-retest reliability
<br />and the construct validity of the French version of the surveys.
<br />Methods: Patients scheduled for total hip (n ¼ 82) or knee replacement (n ¼ 61) aged 38e90
<br />years were included. All completed the HSS Hip or Knee Replacement Expectations Survey
<br />and the Expectation WOMAC to determine concurrent validity.
<br />The test-retest reliability was assessed using the intraclass coefficient correlation (ICC),
<br />the Bland and Altman Method and the coefficient of variation; the internal consistency was
<br />assessed by the Cronbach a coefficient. The construct validity was investigated using the
<br />Pearson correlation coefficient and floor and ceiling effects by percentage frequency of
<br />lowest or highest possible score achieved by respondents.
<br />Results: 143 patients scheduled for hip or knee arthroplasty were included.
<br />The reliability was excellent between the test and the rested total score, with an ICC of
<br />0.902 (0.853e0.936) and CV of 4.06% for the French Hip Replacement Expectations Survey
<br />and 0.865 (0.786e0.917) and CV of 7.7% for the French Knee Replacement Expectations
<br />Survey, without bias.
<br />The Cronbach a coefficient was 0.72 for hip Survey and 0.82 for knee Survey showing a
<br />good internal consistency.
<br />Pearson correlation coefficients of 0.45 and 0.48 between Expectations WOMAC and
<br />HSS, respectively for hip Survey and knee Survey, were observed but with systematic bias.
<br />The lowest possible score was not reported by any patient and only three patients
<br />(3.66%) scheduled for hip arthroplasty reported the highest possible score. Conclusions: The French version of the HSS Hip or Knee Replacement Expectations Survey is
<br />a reliable and valid questionnaire and compares favourably with the original English
<br />version. Therefore, this new version may help French-speaking clinicians to evaluate expectations
<br />before lower limb arthroplasty.