The glenolabral articular disruption lesion: MR arthrography with arthroscopic correlation

• Published in: American journal of roentgenology (1976) Vol. 172; no. 1; pp. 171 - 175
• Main Authors: Sanders, TG, Tirman, PF, Linares, R, Feller, JF, Richardson, R
• Format: Journal Article
• Language: English
• Published: Leesburg, VA Am Roentgen Ray Soc 01.01.1999; American Roentgen Ray Society
• Subjects: Adult; Arthroscopy; Biological and medical sciences; Humans; Investigative techniques, diagnostic techniques (general aspects); Magnetic Resonance Imaging; Male; Medical sciences; Osteoarticular system. Muscles; Radiodiagnosis. Nmr imagery. Nmr spectrometry; Retrospective Studies; Shoulder Joint - injuries; Shoulder Joint - pathology; Wounds and Injuries - diagnosis; Human; Luxation; Radiodiagnosis; Diseases of the osteoarticular system; Exploration; Nuclear magnetic resonance imaging; Trauma; Arthroscopy; Arthrography; Shoulder; Arthropathy; Medical imagery; Endoscopy; Diagnosis
• ISSN: 0361-803X; 1546-3141
• DOI: 10.2214/ajr.172.1.9888763

The purpose of this study was to describe the MR arthrography appearance of the glenolabral articular disruption (GLAD) lesion. Proper diagnosis of this lesion is important because it can be a source of persistent shoulder pain that requires surgical repair and because it is often difficult to diagnose clinically. Findings on MR arthrography were retrospectively correlated with the clinical histories and physical examination findings of six patients in whom we saw the typical appearance of the GLAD lesion. Four of these patients underwent follow-up arthroscopy that included surgical proof of GLAD lesions. Five of the six patients had a documented glenohumeral impaction injury associated with an abducted externally rotated shoulder. All six patients had persistent shoulder pain, but their shoulders were stable during routine examination. In all patients, MR arthrography showed a superficial tear of the anteroinferior labrum with an adjacent articular cartilage injury. The torn labrum remained firmly attached to the anterior scapular periosteum, and contrast material was seen to extend into the labral tear and cartilaginous defect. The MR arthrography findings of GLAD lesions include a nondisplaced tear of the anteroinferior labrum with an adjacent chondral injury. The pattern of chondral injury can range from a cartilaginous flap tear to a depressed osteochondral injury of the articular cartilage and underlying bone.