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Extrinsic Ligaments: Thumb Part 1

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Wrist extrinsic ligamentous anatomy focusing on the thumb.

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3 00:00:05,710 --> 00:00:08,750 I'm going to skip over the formal collaterals right now.

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5 00:00:08,950 --> 00:00:12,520 for that will be a story that is dedicated to the metacarpals.

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7 00:00:12,740 --> 00:00:15,259 But I want to point out the strongest ligamentous

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attachment of the carpometacarpal junction.

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Which is found on the dorsal aspect of the first CMC.

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And is known as the dorsal radial ligament.

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It's seen right here.

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And it lies just deep

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to the insertion of the abductor pollicis

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longus tendon, which will sit just radial to it.

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This strong ligament is best

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seen in the sagittal projection.

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So let's have a look on MRI.

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Faculty

Stephen J Pomeranz, MD

Chief Medical Officer, ProScan Imaging. Founder, MRI Online

ProScan Imaging

Tags

Thumb & Finger

Musculoskeletal (MSK)

MRI

Idiopathic

Hand & Wrist

Congenital

Acquired/Developmental

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