This disoreder is a  rare genetic disorder which is characterized by madelung deformity , short forearms,and short lower legs .

Symptoms

Distal hypoplasia of ulna,Variable small stature,Short forearm,Bowing of radius,Increased gap between radius and ulna,Altered wrist alignment,Madelung deformity,

Partial dislocation of ulna at wrist,Partial dislocation of ulna at elbow,Limited wrist movement,Limited elbow movement,Short lower leg