Thumb MCPJ UCL Injury - Clinical Scenario

A 33-year-old skier presents with thumb pain after a fall causing radial deviation. Suspected acute UCL injury prompts differential diagnosis, valgus stress tests, and imaging.
Thumb MCPJ UCL Injury - Clinical Scenario

Clinical Scenario


A 30-year-old professional skier presents to the emergency department after a fall during training, landing on her outstretched hand with her thumb in extension. She reports severe pain at the base of the thumb, swelling, and limited mobility.

Objectives:
1. Differential diagnosis of ulnar collateral ligament injury.
2. Patho-anatomy of the mechanism of injury described.
3. Clinical examination and investigations.
4. Treatment options you would provide.
5. Post-operative care following UCL repair.


Primary Contributor: Dr Suzanne Thomson, Educational Fellow.
Reviewer: Dr Kurt Lee Chircop, Educational Fellow.

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