Fig. 4

A, our designed anatomic plate is L-shaped with five holes on the horizontal arm. B, A view of the head of the anatomic plate. The head of the anatomic plate is a curved structure that can encompass the entire lateral tibial plateau. C, A schematic diagram showing the raft fixation above the fibular head. Mark A is the centre of the leading edge of the tibial plateau, mark B is the centre of the trailing edge of the tibial plateau, mark O is the centre of the tibial intercondylar eminence, mark C is the posterior margin of the articular surface of the fibular head, and mark D is the anterior edge of the articular surface of the fibula head. BOC represents Region I, DOC represents Region II, AOD represents Region III. Screw 1 and 2 can provide effective subchondral support for the posterolateral bone fragments (Region I), and the other three screws can properly fix the fragments in RegionIIand Region III simultaneously. D, E, Autopsy of a fresh specimen showing the simulated implantation of the anatomic plate and screw