Abstract
Objective: To evaluate the effects of intra-articular sodium hyaluronate injections for chronic shoulder pain from acromioclavicular joint (ACJ) osteoarthritis (OA). Design: Randomized double-blinded crossover trial. Setting: University-based outpatient musculoskeletal physiatric practice. Participants: 19 subjects with chronic shoulder pain were enrolled as their pain was primarily due to ACJ OA, based on a positive response (>50% pain relief within 20min) after a diagnostic ACJ injection. Interventions: 3 weekly fluoroscopically guided intra-articular injections of sodium hyaluronate or saline, and monthly follow-up visits were conducted.
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