Before revision: Types 300px|Salter–Harris Fracture Types There are nine types of Salter–Harris fractures; types I to V as described by Robert B. Salter and W. Robert Harris in 1963, and the rarer types VI to IX which have been added subsequently: Type I – transverse fracture through the growth plate (also referred to as the "physis"): 6% incidence Type II – A fracture through the growth plate and the metaphysis, sparing the epiphysis: 75% incidence, takes approximately 12-90 weeks or more in the spine to heal.
After revision: Types 300px|Salter–Harris Fracture Types There are nine types of Salter–Harris fractures; types I to V as described by Robert B. Salter and William H. Harris in 1963, and the rarer types VI to IX which have been added subsequently: Type I – transverse fracture through the growth plate (also referred to as the "physis"): 6% incidence Type II – A fracture through the growth plate and the metaphysis, sparing the epiphysis: 75% incidence, takes approximately 12-90 weeks or more in the spine to heal.