After months of restrictive containment efforts to fight the severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) epidemic, European countries are planning to reopen. To support the process, we conducted a cross-sectional survey among the Hungarian population to estimate the prevalence of
Objective Little is known regarding the minimal clinically important difference (MCID) and substantial clinical benefit (SCB) with regard to the Knee injury and Osteoarthritis Outcome Score (KOOS), International Knee Documentation Committee (IKDC) Subjective Knee Evaluation Form, Lysholm score, and Short Form 12 (SF-12) score of patients who undergo osteochondral allograft transplantation (OCA). We aimed to determine the MCID and SCB associated with those patient-reported outcome measures (PROMs) after OCA. Design We analyzed the data of 86 consecutive patients who underwent OCA and who completed satisfaction surveys at a minimum of 1 year postoperatively and had at least one repeated PROM. MCID was determined using an anchor-based method: the optimal cutoff point for receiver operative characteristic (ROC) curves. If an anchor-based method was inapplicable, distribution-based methods were employed. SCB was determined using ROC curve analysis. Results Based on the ROC curve analysis, MCID was 16.7 for KOOS pain, 25 for KOOS sports/recreation, and 9.8 for IKDC. SCB was 27.7 for KOOS pain, 10.7 for KOOS symptom, 30 for KOOS sports/recreation, 31.3 for KOOS quality of life, 26.9 for IKDC, 25 for Lysholm, and 12.1 for SF-12 physical component summary. No significant association was noted between SCB achievement and the baseline patient factors and baseline PROMs. Conclusion We demonstrated the MCIDs and SCBs of several PROMs in patients undergoing OCA. These results will aid the interpretation of the effect of treatment and clinical trial settings. Moreover, the SCBs will help surgeons in the counseling of patients, where patients expect optimal results rather than minimal improvement.
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