calcification

Aetiology

Throwing injury

- seen in the throwing athlete

- repetitive microtrauma / valgus stress

- develop laxity

History

Initially

- lose velocity / accuracy

Develop medial pain

40% ulna nerve symptoms

Xray

Calcification

- central pattern

- often increased opacity compared with bone

Ossification

- peripheral pattern

- similar density to bone

Epidemiology

Active pre teen boy

- activity related pain

- common in high jumpers

Diagnosis

Fragmentation / calcification of inferior pole

- repetitive traction injury where PT inserts

- tender at this point

Stages 

I     Normal

II    Ca inferior pole irregularity

III   Coalesce Ca inferior pole