Joint, bone, spine : revue du rhumatisme
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Randomized Controlled Trial Comparative Study
Proper site of corticosteroid injection for the treatment of idiopathic frozen shoulder: Results from a randomized trial.
The objective is to determine whether corticosteroid injection into the subacromial space was not inferior to intra-articular injection in patients with idiopathic frozen shoulder (FS), and whether combined injections had an additive effect. ⋯ The efficacy of corticosteroid injection into the SA space in idiopathic FS was inferior to IA injection up to 12 weeks; however, combination injections had an additive effect on increasing the internal rotation angle. These results indicate that although the glenohumeral joint is a major site in the pathogenesis of idiopathic FS, the SA space may be a contributing site.