Efficacies of corticosteroid injection at different sites of the shoulder for the treatment of adhesive capsulitis

191 patients were randomized to compare the effect of corticosteroid injections at differing sites of the shoulder in treating adhesive capsulitis. Participants were allocated to one of four groups: one received injection to the subacromial bursa, another received injection to the glenohumeral joint, and another received injection at both sites. The fourth group was treated with non-steroidal anti-inflammatory drugs. The results at 24 week follow-up up indicated that improvement in pain, shoulder range of motion and shoulder function were similar among the three groups treated with corticosteroid injections, regardless of injection site.