Congenital pseudoarthrosis of the radius

A rare bone development disorder characterized by abnormal bowing of the radius and subsequent non-healing fracture with formation of a false joint (pseudoarthrosis), instability and angulation at the pseudoarthrosis site, and shortening of the forearm. Additional signs and symptoms include radial deviation in the wrist joint and limited pronation and supination of the forearm. Neurofibromatosis type 1, osteofibrous dysplasia, and bowing and pseudoarthrosis of the ulna are frequently associated.