Minimal Clinically Important Difference After Triamcinolone Acetonide Injection for Knee Osteoarthritis

This study establishes MCID values for KOOS subscales in patients with knee OA receiving TA injections using a distribution-based method, which are similar regardless of duration of follow-up within 6 months. Patients can expect significant pain improvement within the first month, with declining effects thereafter. Lack of early pain improvement correlates with a higher likelihood of repeat injection, supporting the need for follow-up assessments to guide ongoing treatment.