Abstract
The spontaneous rupture of the finger extensor tendon due to Madelung's deformity is rare. We report a rare case of attritional finger extensor tendon rupture due to Madelung's deformity.
A 64-year-old woman visited our hospital and complained of the disability to extend her right ring and little fingers.
X-ray showed classical Madelung's deformity in her bilateral wrists. Attritional rupture of extensor digitorum communis (EDC) tendons of the ring and litter fingers was suspected. At operation, the EDC tendons of the ring and little fingers and extensor digiti minimus (EDM) tendon were completely ruptured. The EDC tendon of the middle finger was partially ruptured. The ulnar head was dorsally dislocated. The Sauvé-Kapandji procedure was performed, and then the distal end of ring and little EDC tendons was sutured to the middle EDC tendon, which was augmented by palmaris longus tendon graft.
The cause of extensor tendon rupture was considered to be attrition by the dislocated ulnar head.
