Ulnar collateral ligament avulsion - thumb
Fall on ground. Trauma to thumb. C/o pain at thumb base.
Referred for evaluation of ulnar collateral ligament of 1st metacarpo-phalangeal joint.
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Symptomatic side Ulnar collateral ligament
- An avulsed bone flake is seen at its distal attachment site
- Donor site is proximal phalanx base.
Asymptomatic side Ulnar collateral ligament
Findings of ulnar collateral ligament avulsion at the thumb base.