Multisite Corticosteroid Injection Superior to Single Injection for Primary Frozen Shoulder .
A Multisite Injection Is More Effective Than a Single Glenohumeral Injection of Corticosteroid in the Treatment of Primary Frozen Shoulder: A Randomized Controlled Trial.
Arthroscopy. 2021 Jul;37(7): 2031-2040.One hundred patients with primary frozen shoulder were randomized to receive physiotherapy plus a corticosteroid injection administered with a multisite approach (n=50; 38 completed follow up) or a single-site approach into the glenohumeral joint (n=50; 38 completed follow up). Outcomes of interest included pain scores on a Visual Analog Scale (VAS), functional status via the American Shoulder and Elbow Surgeons (ASES) and University of California-Los Angeles (UCLA) scores, and range of motion. Outcomes were assessed at 1, 3, 6 and 12 months follow up. Results revealed all outcomes to be statistically in favour of the multisite group compared to the single-site group, at all time-points (p<0.05 for all).
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