Background: Avulsion fracture of the anterior superior iliac spine (ASIS) is a rare form of apophyseal avulsion fracture of the pelvis, and there is a lack of evidence-based guidelines for the selection of treatment options. There are various surgical procedures, but there is the risk of secondary removal of internal fixator and growth disturbance caused by epiphyseal fixation. Methods: We treated 5 patients with avulsion fracture of the anterior superior iliac spine by knotless suture bridge technique who visited our hospital from 2015 to 2020.The surgical treatment results were retrospectively analyzed. Results: 5 patients with fractures were healed after the surgery, no associated complications, the mean postoperative follow-up was 29.2 months (6-60months), all patients were not reported pain symptoms (visual analogue score of 0), they don’t have the limitation of daily activities, and the hip joint function recovered well, and very pleased with the results (Harris score 100 points) at the final follow-up. Conclusion: Knotless suture bridge technique is simple and effective in the repair of the avulsion fracture of anterior superior iliac spine. For such patients, this surgical technique can provide stable and reliable fixation, allow early recovery, and provide a feasible scheme for clinical practice.
Avulsion fracture of the anterior superior iliac spine: misdiagnosis of a bone tumour
