Madelung Deformity    

15 year old male boy come with complaint of shorting of right hand 

There is relative shortening of radius. There is thinning of epiphyseal plate of radius along medial aspect. There is lateral bowing of ulna. Radio-ulnar joint space is increase. 

There is proximal migration of lunate between radius & ulna. Scaphoid is vertical in orientation.

Madelung Deformity.