The long-term efficacy of corticosteroid injection into the acromioclavicular joint using a dynamic fluoroscopic method

Purpose: Accuracy and efficacy of an intra-articular infiltration of corticosteroid and local anesthetic in the symptomatic acromioclavicular joint were studied in 44 patients. Methods: Accuracy of the infiltration was studied using a blind technique with a dynamic fluoroscopic control. Results: Accuracy of the blind infiltration technique was only 50% and the dynamic fluoroscopic technique remains our preferred technique in the clinical setting. On average patients reported a 65% decrease in the intensity of the pain following the injection. At an average follow-up of forty-two months, 59% had undergone surgery, 14% of patients reported more than three months of symptoms relief. Conclusions: Despite the poor long-term results of injecting the acromioclavicular joint, it remains a valuable technique. It has a low cost, minor risks of complications and has high diagnostic value. All but one patients reporting short-term pain relief. Level of Evidence: Level III, case control study.