The neglected Monteggia injury in a child is considered uncommon. The Monteggia injury in a child may remain undiagnosed and untreated due to failure to seek treatment, missed diagnosis or inappropriate or inadequate treatment. The best way to avoid missing the injury is to follow the ulna bow line as well as the radiocapitellar line. Late Monteggia injuries in children present with dislocation of radial head and cubitus valgus. Elbow instability, shortening, and possibly radial, median and ulnar nerve damage are significant complications especially with injuries acquired early in life. Management of late presenting Monteggia lesion and its variant “Isolated radial head dislocation” has been a subject of debate in literature. In recent years the literature has recorded several surgeries to restore the radial head to its normal position. It is suggested that in late presenting Monteggia lesions relocation surgery for dislocated radial head should be considered if the proximal radial anatomy and articular surface is not abnormal. The procedures include ‘the Bell Tawse and Lloyd Roberts procedures. These are fascial sling operations to hold the radial head in position. Mehta described an angulation distraction ulnar osteotomy with bone graft for reduction of the radial head without any internal fixation. Complications related to these procedures include posterior interosseous nerve palsy, myositis ossificans, radioulnar synostosis, elbow stiffness and re-dislocation.