A Rare Challenging Case: Chronic Post-traumatic Anterior Instability of the Metacarpophalangeal Joint of the Thumb

The chronic post-traumatic anterior instability of the metacarpophalangeal joint of the thumb is a rare medical condition that impairs the pollici - digital clamp as well as the dextrous function of the thumb. Multiple treatment options could be employed. The authors present the case of a young patient who suffers a chronic anterior instability of the metacarpophalangeal (MCP) joint of the thumb, due to an acute hyperextended trauma. The injury didn’t get adequat treatment. However, a free tendon graft has achieved a good functional outcome.