Kuo AC, Giori NJ, Bowe TR, et al. - Researchers examined veterans undergoing total hip or knee arthroplasty for the minimal clinically important differences in the Hip Disability and Osteoarthritis Outcome Score (HOOS) and in the Knee Injury and Osteoarthritis Outcome Score (KOOS). They conducted a prospective cohort study of 858 patients undergoing total joint replacement; Among these patients, 271 patients had undergone hip arthroplasty [mean age (SD): 65.6 (8.3) years], and 587 patients had undergone knee arthroplasty [mean age (SD): 66.1 (8.2) years]. Participants were administered HOOS or KOOS patient-reported outcome measures prior to and 1 year after surgery. Per outcomes, there was a wide variation in minimal clinically important difference estimates depending on the method used. Self-Administered Patient Satisfaction Scale (SAPS) is suggested to be a suitable anchor for the HOOS and KOOS for measuring patient satisfaction. Based on observations, they recommend methods anchored on the SAPS as these methods displayed good to excellent discrimination based on receiver operating characteristic curve analysis. .