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J Shoulder Elbow Surg · Dec 2012
Comparative StudyThe influence of ultrasound guidance in the rate of success of acromioclavicular joint injection: an experimental study on human cadavers.
- Paul Borbas, Tanja Kraus, Hans Clement, Stefan Grechenig, Annelie-Martina Weinberg, and Nima Heidari.
- Department of Orthopedics, University of Zurich, Balgrist, Zurich, Switzerland. paul.borbas@balgrist.ch
- J Shoulder Elbow Surg. 2012 Dec 1; 21 (12): 1694-7.
BackgroundInjections of the acromioclavicular joint (ACJ) are performed routinely in patients with ACJ arthritis, both diagnostically and therapeutically. The aim of this prospective controlled study was to estimate the frequency of successful intra-articular ACJ injections with the aid of sonographic guidance versus non-guided ACJ injections.Materials And MethodsA total of 80 cadaveric ACJs were injected with a solution containing methylene blue and subsequently dissected to distinguish intra- from peri-articular injections. In 40 cases the joint was punctured with sonographic guidance, whereas 40 joints were injected in the control group without the aid of ultrasound.ResultsThe rate of successful intra-articular ACJ injection was 90% (36 of 40) in the guided group and 70% (28 of 40) in the non-guided group. Ultrasound was significantly more accurate for correct intra-articular needle placement (P = .025).DiscussionThe use of ultrasound significantly improves the accuracy of ACJ injection.Copyright © 2012 Journal of Shoulder and Elbow Surgery Board of Trustees. Published by Mosby, Inc. All rights reserved.
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