Anterior superior iliac spine fractures

I came across this xray while reviewing results, and thought it might be good for everyone to see!

ASIS avulsion, like other pelvic avulsion injuries, is a stable fracture.

​The anterior superior iliac spine (ASIS), which develops from an anterior apophysis of the iliac crest, is the site of origin of the sartorius muscle and part of the tensor fasciae latae. An avulsion fracture of the ASIS is most commonly seen in adolescents due to forceful contraction or sudden repetitive actions of these muscles, as occurs when running or kicking a ball. It is sprint athletes, football players and gymnasts that are most often affected, due to the range of movements they perform and sudden changes in direction required.
 
These can usually be treated on an outpatient basis with crutches, analgesics, and modified activity. Spontaneous recovery usually occurs within 4-to-6 weeks.
Occasionally, surgical intervention is required to remove painful fragments or to regain anatomic fixation.
 
Further reading:
https://radiopaedia.org/articles/anterior-superior-iliac-spine-avulsion-injury
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3163773/

Clare Bosanko