Fig. 1

Intra-operative images. a Posterolateral ecchymosis of the knee joint b The dial test was positive c-e The fracture of the anterior medial tibial plateau was released and reduced under arthroscopy f PCL was found to be injured under arthroscopy g Completed PCL reconstruction h A locking plate is used to fix the anteromedial tibial plateau through the medial incision i Approximately 15 cm of the posterolateral part of the iliotibial bundle was taken j PLC reconstruction was completed, and posterolateral structures of the knee joint were sutured through the lateral arc incision