Open Osteochondral Fracture of the Lateral Trochlea in an Adult: The Role of Fibrocartilage

Open osteochondral fractures of the knee, particularly of the anterolateral trochlea, are rare and pose diagnostic and therapeutic challenges. A 42-year-old male sustained direct trauma to the left knee, right ankle, and elbow, with imaging confirming an open osteochondral fracture of the lateral trochlea and a detached fragment in the suprapatellar pouch. Surgical debridement and fixation with Herbert screws were performed. Fibrocartilage identified at the quadriceps tendon-patellar junction suggests a role in stress transmission that contributes to the fracture. Postoperative management involved early mobilization with brace protection, leading to successful healing. This case underscores the importance of timely intervention, precise fixation, and controlled rehabilitation while highlighting the need for further research into the biomechanical role of fibrocartilage in similar injuries.