Madelung's Deformity with Extensor Tendon Rupture: Case Reports

Abstract

A case of Madelung's deformity in a 77-year-old woman is described. In the course of 7 years she consecutively lost the ability to extend the MP joints of the three ulnar fingers of her left hand. At operation the three extensor tendons were completely disrupted. The reason could be demonstrated to be the sawing action of the dislocated, enlarged ulnar head when wrist movements were carried out. Prophylactic resection of the distal ulna is suggested in cases of pronounced Madelung's deformity.