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Coronal Anatomy: Extrinsic Ligaments Part 12

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Now here's what I'm talking about.

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Here's our sideways V. There's the distal limb

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of the V. There's the proximal limb of the V,

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the distal limb representing the dorsal

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intercarpal ligament, the proximal limb right here

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representing the dorsal radiotriquetral ligament.

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You can see the V faces out towards the

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radial side or opens towards the radial side.

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The dorsal intercarpal ligament,

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as stated, comes off the dorsal

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tubercle of the triquetrum and courses over

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towards the dorsal groove of the scaphoid.

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It does, along with this ligament as well,

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give off some fibers and attach to the scapholunate

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and lunotriquetral ligaments, although

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that direct attachment is difficult to see.

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These two ligaments provide fine-tuning of

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scaphoid movement during various rotational

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movements of the wrist and produce fine control

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in patients who potentially could have

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scapholunate microinstability or dissociation,

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these are important stabilizers of the

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scaphoid along with some of the volar

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ligaments you've already learned about.

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Faculty

Stephen J Pomeranz, MD

Chief Medical Officer, ProScan Imaging. Founder, MRI Online

ProScan Imaging

Tags

Musculoskeletal (MSK)

MRI

Idiopathic

Hand & Wrist

Congenital

Acquired/Developmental

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