This was no doubt due to the infrequency of extension of the comminuted fractures beyond the junction of diaphysis and epiphysis.
Suppuration is rare, disjunction of the epiphysis from the diaphysis common.
The upper end of the diaphysis forms a projecting ridge which may be felt below and in front of the acromion.
The periosteum rarely becomes separated at the line of junction of the epiphysis and diaphysis.
The process nearly always begins in the diaphysis, but then may extend into the epiphysis and produce suppuration of the joint.
In compound separations of epiphysis, the end of the diaphysis may be pushed through the skin.
Other tracks took a direction of longitudinal obliquity, and then implicated both epiphysis and diaphysis.
On its under aspect is a cup-like depression into which the central pyramidal-shaped portion of the diaphysis fits.
The end of the diaphysis may be palpated through the skin in front.
Sometimes the separation is compound, the diaphysis protruding through the skin.
diaphysis di·aph·y·sis (dī-āf'ĭ-sĭs)
n. pl. di·aph·y·ses (-sēz')
The shaft of a long bone.