Rupture of the short head component of a bifurcated distal biceps tendon.

Rupture of the short head component of a bifurcated distal biceps tendon is a rare injury that can be easily misdiagnosed and mistreated. A meticulous physical examination and evaluation of imaging is required to differentiate this injury from a partial or complete tear of a common distal biceps tendon. Clinicians should maintain a high index of suspicion for this unusual injury pattern. When it is diagnosed appropriately, selective disruption of the short head of the biceps distal tendon may be effectively treated with anatomic repair.