Corticosteroid Injection Versus Tendon Dry Needling for Subacromial Impingement Syndrome

This randomized clinical trial aims to compare the efficacy of corticosteroid injection and tendon dry needling for the treatment of subacromial impingement syndrome.

This randomized clinical trial will compare the efficacy of corticosteroid injection and tendon dry needling for the treatment of subacromial impingement syndrome.Participants will be randomized to receive either a corticosteroid injection or tendon dry needling treatment. The corticosteroid injection group will receive a single subacromial injection of 40mg triamcinolone acetonide under ultrasound guidance. The tendon dry needling group will receive a total of 3 sessions of dry needling treatment to the supraspinatus, infraspinatus, and subscapularis muscle tendons. Patients will be assessed before treatment, after treatment, after three weeks and after three months with visual analog scale, Shoulder Pain and Disability Index (SPADI) and shoulder range of motion measurements.