Avulsion Fracture of the Anterior Superior Iliac Spine in a Young Athlete Detected by Point-Of-Care Ultrasound  

Takaaki Mori, MD, MRCPCH, MSc; Takateru Ihara, MD; Osamu Nomura MD, MA, PhD – Pelvic avulsion fractures (PAFs) are rare and specific to adolescents and young athletes [1, 2]. Owing to their stage of musculoskeletal development, forceful contractions of muscles or tendons during sports activities frequently cause a PAF to occur in any of four anatomical sites, including the iliac crest, anterior superior iliac spine (ASIS), anterior inferior iliac spine (AIIS), and ischial tuberosity [1, 2].