Fig. 8

A classification system was developed based on injury mechanism and characterization of fracture lines. The image with gray background is the schematic diagram of fracture classification, and the image with black background below is the 3D reconstruction map of corresponding types of patients in this study: type I predominantly involves the action of the lateral band of the plantar fascia; type II predominantly involves the action of the peroneus brevis; type IIIA involves the joint action of the peroneus brevis and the lateral band of the plantar fascia, with only one fracture line; and type IIIB involves the joint action of the peroneus brevis muscle and the lateral band of the plantar fascia, with two fracture lines