Salter-Harris fractures are fractures through the physis with, or without, fracture propagation through the metaphysis or epiphysis.

In this case, there is epiphyseal shift on the metaphysis and there must be an underlying physeal fracture. There is not a visible metaphyseal or epiphyseal component and this is therefore classed as Salter-Harris type I.

In some cases, further imaging may expose a small metaphyseal component, which would make this a type II injury. CT does this on many occasions. However, that distinction does not alter management or prognosis and therefore does not bring with it a clinical benefit.