Table 1 Lauge-Hansen SER Stages, where each stage of injury is in addition to the prior
| Stage 1 | AITFL |
| Stage 2 | Fibula Fracture (Fx) |
| Stage 3 | PITFL or Posterior Malleolar Fx |
| Stage 4 | Deltoid or Medial Malleolar Fx |
| Stage 1 | AITFL |
| Stage 2 | Fibula Fracture (Fx) |
| Stage 3 | PITFL or Posterior Malleolar Fx |
| Stage 4 | Deltoid or Medial Malleolar Fx |