Defining the Minimal Clinically Important Difference (MCID), Patient Acceptable Symptom State (PASS), and Maximal Outcome Improvement (MOI) values for individuals with acetabular dysplasia (AD) undergoing non-operative management

The authors aimed to define key clinically important outcome values for the International Hip Outcome Tool 12 (iHOT-12) in individuals with acetabular dysplasia undergoing physiotherapy. They established the minimal clinically important difference (MCID) as 8.5 points, a patient acceptable symptom state (PASS) change score of 15.2, an absolute PASS threshold score of 62, and a maximal outcome improvement (MOI) threshold of 22.9%. Despite reporting symptom improvement, only half of the participants expressed satisfaction with their functional status after treatment.