The Salter-Harris classification of pediatric fractures describes five basic fractures that involve the physeal growth plate.
Salter-Harris I fractures may be subtle and involve separation of the metaphysis (M) and epiphysis (E) through the physis (P).
Salter-Harris II–IV fractures are growth plate fractures that extend to the metaphysis (II), the epiphysis (III), or both (IV).
Type V fractures are impaction fractures at the growth plate.