Question

All of the following are true regarding Madelung's deformity, EXCEPT: a. Caused by an abnormality of the volar aspect of distal radius growth plate (TRUE - volar and ulnar aspect) b. There will be ulnar positive variance (TRUE - dorsal prominence of ulnar head is a distinguishing feature. Ulnar physis continues to growth, whereas volar-ulnar distal radius physis is stunted. Ulnar shortening is a treatment option) c. Caused by an abnormality of the dorsal ulnar aspect of distal radius growth plate (FALSE - growth abnormality occurs at the volar and ulnar distal radius) d. The carpus will dislocate volarly (TRUE - Vicker's ligament tethers lunate to distal radius volarly causing subsidence)

Answer 1

The statement that is NOT true regarding Madelung's deformity is caused by an abnormality of the dorsal ulnar aspect of the distal radius growth plate. Therefore, the correct option is C.

Step-by-step explanation:

Madelung's deformity is indeed caused by an abnormality of the volar and ulnar aspects of the distal radius growth plate. The growth disturbance leads to a characteristic deformity characterized by dorsal subluxation of the ulna and volar tilt of the distal radial articular surface.

The dorsal prominence of the ulnar head and volar dislocation of the carpus are features of Madelung's deformity. Understanding these anatomical abnormalities is crucial for accurate diagnosis and appropriate management of this congenital wrist deformity.

Therefore, the correct option is C.