johanssen

Sinding - Larson - Johanssen

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