Surgical Management of a Displaced Posterior Column Pelvic Fracture Involving the Triradiate Cartilage in a 15-Year-Old Adolescent Boy: A Case Report.

Case: A 15-year-old adolescent boy sustained a displaced acetabular fracture involving the ilioischial physis of the triradiate cartilage after a ground-level fall. The patient was managed operatively with open reduction and internal fixation and was followed for 9 months postoperatively. At 4 months postoperatively, the patient had resumed full weight bearing on the injured extremity and was participating in sports with no difficulties.

Conclusion: Pediatric pelvic fractures through the triradiate cartilage are rare, and no consensus exists on the treatment of these injuries. Previous authors largely described nonoperative management with suboptimal outcomes. We present the case of a patient treated with initial operative fixation who successfully returned to full activities.