- Discussion:
- classically described as causing heel pain in older children, just prior to fusion of the calcaneal apophysis (between ages 12-15 yrs);
- diff dx:
seronegative arthritis
- often associated with tight heel cord;
- it has been argued in the past that the radiographic fragmentation of the apophysis correlated w/ the patient's symptoms;
- as is shown below, however, fragmentation of the apophysis is a normal finding;
- Normal Radiographs: 
Prevention and management of calcaneal apophysitis in children: An overuse syndrome.
LJ Micheli and MO Ireland. J. Pediatric Orthopaedics. Vol 7. 1987. p 34-38.
Sever's injury: A stress fracture of the immature calcaneal metaphysis. J Ped Orthop 2004;24:488-492.
