• Sang-Jin Shin and Seung-Yup Lee.
• Department of Orthopaedic Surgery, School of Medicine, Ewha Womans University, Seoul, South Korea. sjshin622@ewha.ac.kr
• J Shoulder Elbow Surg. 2013 Apr 1;22(4):521-7.

BackgroundA corticosteroid injection in the glenohumeral joint conducted blindly is technically demanding with a low rate of accuracy despite satisfactory clinical outcomes in the treatment for adhesive capsulitis. This study prospectively compared the clinical outcomes of patients with idiopathic adhesive capsulitis treated by a single corticosteroid injection in different locations of the shoulder.Materials And MethodsWe randomly assigned 191 patients with adhesive capsulitis to 1 of 4 groups based on corticosteroid injection location: group I, subacromial; group II, intra-articular; group III, intra-articular combined with subacromial space; and group IV, medication. Pain relief and patient satisfaction were assessed with a visual analog scale and functional outcomes were evaluated with the American Shoulder and Elbow Surgeons score up to 24 weeks after treatment.ResultsPatients treated with corticosteroids achieved faster pain relief and had greater satisfaction levels than patients in group IV during the 16 weeks after treatment. However, no significant difference in pain scores was observed among the 4 groups at 24-week follow-up visits (P = .670). Shoulder motion and function improved in all groups at final follow-up. However, shoulder motion in the injection groups recovered faster than that in group IV. At 24 weeks after treatment, no significant differences in shoulder motion or functional outcomes were found among the 4 groups (P = .117).ConclusionsThe efficacy of a single corticosteroid injection was not found to be related to the site of injection. However, a single corticosteroid injection provided faster pain relief, a higher level of patient satisfaction, and an earlier improvement in shoulder motion and function than medication in patients with adhesive capsulitis.Copyright © 2013 Journal of Shoulder and Elbow Surgery Board of Trustees. Published by Mosby, Inc. All rights reserved.

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