A 30-year-old man was in a motorcycle accident resulting in an avulsion fracture of the tibial insertion of the posterior cruciate ligament (PCL). After 19 months of nonoperative treatment, the patient presented with a nonunion and symptoms of pain and instability. He was treated with an open repair with screw fixation through a posterior approach. Six months postoperatively, the patient returned to his work as a heavy laborer with full range of motion and no instability.
PCL avulsion fracture nonunion results in symptoms of swelling, pain, and instability. These symptoms can be treated with screw fixation through a posterior approach.