"The calcaneal apophysis commences ossification approximately 2 years earlier in females at a mean age of 5 years and is fully fused from 10-14 years 2. The apophysis can form from one or multiple secondary centres 2,3, largely in the middle or inferior zone of the calcaneal tuberosity and enlarges first superiorly and inferiorly, then medially and laterally to form first the medial process and then lateral process. Fusion commences in the middle zone and lateral process, progresses to the medial process and inferior zone, and finishes in the superior zone 2."
"Related Pathology"
Expected headings
"Terminology"
"Ossification"
"Related Pathology"