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CC BY-NC-ND 4.0 · Indian J Radiol Imaging 2011; 21(02): 98-106
DOI: 10.4103/0971-3026.82284
Musculoskeletal Radiology

Spectrum of magnetic resonance imaging findings in clinical glenohumeral instability

Manisha Jana
Department of Radiodiagnosis, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, India
,
Deep Narayan Srivastava
Department of Radiodiagnosis, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, India
,
Raju Sharma
Department of Radiodiagnosis, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, India
,
Shivanand Gamanagatti
Department of Radiodiagnosis, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, India
,
Hiralal Nag
Department of Orthopaedics, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, India
,
Ravi Mittal
Department of Orthopaedics, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, India
,
Ashish Dutt Upadhyay
Department of Biostatistics, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, India
› Institutsangaben Financial support and sponsorship Nil.
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Abstract

The glenohumeral joint is the most commonly dislocated joint in the body, and anterior instability is the most common type of shoulder instability. Depending on the etiology and the age of the patient, there may be associated injuries, for example, to the anterior-inferior labro-ligamentous structures (in young individuals with traumatic instability) or to the bony components (commoner in the elderly), which are best visualized using MRI and MR arthrography. Anterior instability is associated with a Bankart lesion and its variants and abnormalities of the anterior band of the inferior glenohumeral ligament (IGHL), whereas posterior instability is associated with reverse Bankart and reverse Hill-Sachs lesions. Cases of multidirectional instability often have no labral pathology on imaging but show specific osseous changes including increased chondrolabral retroversion. This article reviews the relevant anatomy in brief and describes the MRI findings in each type, with the imaging features of the common abnormalities.

Keywords

Bankart lesion - Glenohumeral instability - magnetic resonance arthrogram - magnetic resonance imaging


Publikationsverlauf

Artikel online veröffentlicht:
30. Juli 2021

© 2011. Indian Radiological Association. This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial-License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/).

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