[Long-term study of an unusual post-traumatic arthrosis of the ankle joint].

Long-term observation for 15 years of an unusual heavy posttraumatic degenerative arthritis in the upper ankle joint with considerable deformations of the structures and surprising good motility in the joint. Demonstration of the case by pictures and x-ray pictures. The question of overrating posttraumatic degenerative arthritis and its sequels is discussed.