Fractures involving the growth plate are described using the Salter classification, with higher numbers indicating greater risk of a poor late result:
| Salter Classification | |
| I | Shearing separation of epiphysis from metaphysis |
| II | Small segment of metaphysis taken with epiphysis (Thurston-Holland fragment) |
| III | Intra-articular epiphyseal without epiphyseal plate injury |
| IV | Vertical through metaphysis, epiphyseal plate and epiphysis |
| V | Crush Injury of epiphysis |