Citation, DOI, disclosures and article data
Citation:
Knipe H, Elhusseiny A, Jones J, et al. Glenoid avulsion of the glenohumeral ligament. Reference article, Radiopaedia.org (Accessed on 24 Mar 2025) https://doi.org/10.53347/rID-54431
Glenoid avulsion of the glenohumeral ligament (GAGL) is a shoulder injury that is similar to the humeral avulsion of the glenohumeral ligament (HAGL) but where the avulsion fracture is of the glenoid attachment of the inferior glenohumeral ligament rather than the humeral attachment, with or without disruption of the inferior labrum 1,2.
Radiographic features
On coronal oblique glenohumeral arthrography MRI sequences, instead of a "J sign" of a HAGL, there will be a "reverse J sign" from a GAGL 1.
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1. Mannem R, DuBois M, Koeberl M, Kosempa D, Erickson S. Glenoid Avulsion of the Glenohumeral Ligament (GAGL): A Case Report and Review of the Anatomy. Skeletal Radiol. 2016;45(10):1443-8. doi:10.1007/s00256-016-2449-9 - Pubmed
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2. Wolf E & Siparsky P. Glenoid Avulsion of the Glenohumeral Ligaments as a Cause of Recurrent Anterior Shoulder Instability. Arthroscopy. 2010;26(9):1263-7. doi:10.1016/j.arthro.2010.06.005 - Pubmed
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3. Jana M & Gamanagatti S. Magnetic Resonance Imaging in Glenohumeral Instability. World J Radiol. 2011;3(9):224-32. doi:10.4329/wjr.v3.i9.224 - Pubmed
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