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.