Madelung Deformity and Extensor Tendon Rupture
Extensor tendon rupture in chronic Madelung deformity, as a result of tendon attrition on the dislocated distal ulna, is a rare occurrence. It is, however, seen more often in rheumatoid arthritis. There are few case reports in the English-language literature on this issue. We report a case of multiple tendon ruptures in a previously undiagnosed Madelung deformity.
Conclusion
Our case reflects the usual middle-aged female presentation of such a tendon rupture. The tendon ruptures were spontaneous in the reported order of ulnar to radial, beginning with the little and ring fingers, and progressed radially. The patient had isolated Madelung deformity with no other sign of dyschondrosteosis13 or dwarfism, conditions commonly mentioned in association with Madelung deformity. This case report should raise awareness about possible tendon rupture in any chronic case of Madelung deformity.
