| Monteggia Fracture - Bado Classification | |
| I | Anteriorly Angulated Ulna Fracture + Anterior Radial Head Dislocation |
| II | Posterior Angulated Ulna + Posterior/Posterolateral Radial Head Dislocation |
| III | Ulnar Metaphysis + Lateral/Anterolateral Radial Head Dislocation |
| IV | Proximal 1/3 Radius and Ulna + Anterior Radial Head Dislocation |