APPLIED RADIOLOGICAL ANATOMY

Detailed explanation-1: -Avulsion fractures of the anterior superior iliac spine (ASIS) and the anterior inferior iliac spine (AIIS) with indirect mechanism are the consequence of a forceful contraction of the sartorius and the rectus femoris, respectively, with the hip extended and the knee flexed (8, 12).

Detailed explanation-2: -The ASIS is the most anterior portion of the iliac crest and is the attachment point for the sartorius muscle as well as the inguinal ligament which connects to the pubic tubercle.