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MRI Correlation: Extrinsic Ligaments Part 8

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Here are three MR examinations that I'm scrolling.

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Palm up, radius over on your right,

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the viewer's right, ulna on the viewer's left.

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T1 fat-weighted, heavily water-weighted,

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T2 water-weighted, not as heavily water-weighted.

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We've got the volar radioulnar ligament, pretty

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long, going across the palmar aspect of the wrist.

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And the dorsal radioulnar ligament, which we'll

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discuss a little bit later, more involved in pronation.

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The volar ligament more involved in supination.

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And as previously stated, there are ligaments

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that come off the volar radioulnar ligament,

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so-called ligamentous, the ligamentous origin,

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that go towards the distal aspect of the

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wrist, or the proximal carpal row bones.

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In this case, between the lunate and the

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scaphoid, this is the volar ulnocarpal ligament

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coming off the volar radioulnar ligament.

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Tears of this ligament can be very problematic

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and produce radioulnar instability,

Report

Faculty

Stephen J Pomeranz, MD

Chief Medical Officer, ProScan Imaging. Founder, MRI Online

ProScan Imaging

Tags

Musculoskeletal (MSK)

MRI

Idiopathic

Hand & Wrist

Congenital

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