<prompt> Monteggia fracture is a:Fracture of atlasFracture of radial styloidFracture of proximal 13 of ulna with dislocation of proximal radioulnar jointFracture of distal 13 of radius with dislocation of distal radioulnar joint  <response>: Fractures between the proximal third of the ulna and the base of olecranon combined with dislocation of the proximal radio-ulnar joint. Direction of dislocation of radial head is used for classification. Bados classification is used to classify monteggia fracture 