Management of an isolated posterior cruciate ligament avulsion fracture in a pediatric patient using screw fixation: A case report

Introduction: Isolated posterior cruciate ligament (PCL) avulsion fracture is rare in pediatric population. To our knowledge, there is no established guideline to treat this rare injury in children. This case highlights the diagnostic challenges and treatment strategies using screw fixation for such injuries, emphasizing the importance of timely intervention to prevent long-term complications.

Case presentation: A 12-year-old girl presented with acute right knee pain following a fall. Imaging revealed an avulsion fracture of the posterior cruciate ligament. The patient underwent open reduction and internal fixation (ORIF) with two partially threaded cannulated screws. One year follow-up showed satisfactory post-operative outcomes.

Discussion: This case features the diagnosis challenges and surgical treatment of a PCL injury in children. Surgical intervention is required to restore knee function, particularly in active pediatric patients. Challenges include the prompt diagnosis and the need for precise surgical techniques to minimize long-term sequelae.

Conclusion: Early diagnosis and appropriate surgical intervention are crucial for optimal outcomes in pediatric patients with Isolated PCL avulsion fractures. This case demonstrates the efficacy of ORIF in managing such injury.

Clinical importance: This report contributes to the limited existing literature on Isolated PCL avulsion fractures in pediatric patients and accentuates the need for awareness and early intervention to prevent future joint instability and degenerative changes.