There is no single, widely accepted definition of the anatomic margins of the lateral malleolus. For the purpose of this review, the lateral malleolus refers to the distal part of the fibula that articulates with the talus and distal tibia. Lateral malleolar fractures lie between the distal tip of the fibula (inferior yellow line) and the most proximal portion of the fibula that lies directly adjacent to the tibia in the tibial groove (superior yellow line).
