Ulnar collateral ligament of thumb

Ulnar collateral ligament (thumb)
From	first metacarpal head
To	volar aspect of proximal phalanx of the thumb
*Anatomical terminology* [edit on Wikidata]

The ulnar collateral ligament of the thumb runs along the ulnar side of the metacarpo-phalangeal joint of the thumb. The ulnar collateral ligament is an important stabilizer of the thumb.

It is on the radial side of the wrist, but on the ulnar side of the thumb. It should not be confused with the ulnar collateral ligament of wrist joint.

Clinical significance

Injuries to it cause instability and loss of function of the thumb.^[1] Acutely this injury is known as the Skier's thumb^[2] or if the result of chronic injury Gamekeeper's thumb.

References

↑ Tsiouri, Chrysi; Hayton, Michael J.; Baratz, Mark (2008). "Injury to the Ulnar Collateral Ligament of the Thumb". HAND 4 (1): 12–18. doi:10.1007/s11552-008-9145-8. ISSN 1558-9447.
↑ Jeffrey Bytomski; Claude Moorman; Domhnall MacAuley (2010). Oxford American Handbook of Sports Medicine. Oxford University Press US. pp. 186–. ISBN 978-0-19-537219-9. Retrieved 1 November 2010.

Joints and ligaments of the arm

Shoulder

Sternoclavicular	Anterior sternoclavicular Posterior sternoclavicular Interclavicular Costoclavicular

Acromioclavicular	Syndesmoses: Coracoacromial Superior transverse scapular Inferior transverse of scapula Synovial: Acromioclavicular Coracoclavicular (trapezoid conoid)

Glenohumeral	Capsule Coracohumeral Glenohumeral (superior, middle, and inferior) Transverse humeral Glenoid labrum

Elbow

Humeroradial	Radial collateral

Humeroulnar	Ulnar collateral

Proximal radioulnar	Anular Oblique cord Quadrate

Forearm

Distal radioulnar	Palmar radioulnar Dorsal radioulnar Interosseous membrane of forearm

Hand

Wrist/radiocarpal	Dorsal radiocarpal/Palmar radiocarpal Dorsal ulnocarpal/Palmar ulnocarpal Ulnar collateral/Radial collateral

Intercarpal midcarpal	Radiate carpal Dorsal intercarpal Palmar intercarpal Interosseous intercarpal Scapholunate Pisiform joint (Pisohamate Pisometacarpal)

Carpometacarpal	Dorsal carpometacarpal Palmar carpometacarpal thumb: Radial collateral Ulnar collateral

Intermetacarpal	Deep transverse metacarpal Superficial transverse metacarpal

Metacarpophalangeal	Collateral Palmar

Interphalangeal	Collateral Palmar

Other	Carpal tunnel Ulnar canal

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