【摘 要】
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BACKGROUND AND OBJECTIVESubacromial impingement is a common cause of shoulder pain in adults, with corticosteroid injections a frequent management tool for this condition. Ultrasound (US) guidance has
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BACKGROUND AND OBJECTIVESubacromial impingement is a common cause of shoulder pain in adults, with corticosteroid injections a frequent management tool for this condition. Ultrasound (US) guidance has been recommended for these injections due to the increased accuracy provided by US use. This study compared the clinical effectiveness of US-guided subacromial injections to that of blind subacromial injections.
METHODSThis prospective, double-blind, randomized, controlled trial included 51 patients diagnosed with subacromial impingement, with 28 shoulders undergoing US-guided injections, and 28 receiving a landmark-guided injection. The main outcome measure was pain with overhead activity as measured by a 100 point visual analogue scale (VAS)．
RESULTSBoth groups realized significant improvements in VAS scores for pain, decreasing from 59 before the injection to 33 at week six in the US group, and from 63 to 39 in the blind injection group, with no significant difference between the groups. Both groups showed significant improvement in the American Shoulder and Elbow Surgeons (ASES) score with no significant difference between the groups.
CONCLUSIONThis study of patients with subacromial impingement syndrome found no significant difference in clinical outcomes between those injected using ultrasound guidance and those injected using landmark guidance.
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