An avulsion fracture is an injury to the bone. Basically, it is a fracture that occurs at the location where a tendon or ligament attaches to the bone. This tendon or the ligament pulls off a piece of the bone along with it instead of ligament tear. An avulsion fracture can occur anywhere in the body, most commonly in the knee joint.
In ACL, PCL, ligament injury, the ligament is torn. Whereas in ACL, PCL avulsion injury, the ligament is intact but the ligament attached with the bone is fractured and pulled off. The commonest site of bone pulling is seen at the tibial attachment site.
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ACL and PCL avulsion fracture treatment:
MINIMALLY DISPLACED AVULSION FRACTURES CAN BE TREATED CONSERVATIVELY (NON SURGICALLY):
Displaced avulsion fractures require surgery: