The majority of fractures of the proximal radius in childhood are radial neck fractures, 21r-E and 21r-M.
Radial head fractures in children are very rare and are more common in patients approaching skeletal maturity, when the mechanical properties of epiphysial bone is similar to that of an adult.
1. 21r-E/3 Radius, epiphyseal fracture, Salter-Harris III
21r-E/3.1 + 3.2
Simple epiphyseal fractures (21r-E/3.1) are fractures with an epiphyseal fragment.
Multifragmentary fractures with complete separation of epi- and metaphysis (21r-E/3.2) are rare.
2. 21r-E/4 Radius, epimetaphyseal fracture, Salter-Harris IV
21r-E/4.1 + 4.2
Simple epiphyseal fractures (21-E/4.1) are fractures with an epiphyseal fragment with a metaphyseal wedge attached to it.
Multifragmentary fractures (fragmentary metaphyseal; 21r-E/4.2) are rare.