Sonography of a Rupture of the Tendon of the Extensor Pollicis Longus Muscle: Initial Clinical Experience and Correlation with Findings at Cadaveric Dissection

Abstract

Sonography may aid in diagnosing a rupture of the EPL tendon and in the preoperative assessment of gap size and position of the retracted tendon ends. A characteristic tubular hypoechoic area may be seen crossing over the extensor carpi radialis tendons.