The medial malleolus is a bony process extending distally off the medial tibia. The tarsal tunnel is found along the inner leg posterior to the medial malleolus. A fractured fibula in addition to detaching the medial malleolus will tear the tibiofibular syndesmosis. The distal-most aspect of the fibula is called the lateral malleolus. Types include lateral malleolus, medial malleolus, posterior malleolus, bimalleolar, and trimalleolar fractures. The medial malleolus is found at the foot end of the tibia. The medial surface -- see medial malleolus for details. He suffered a broken peroneal malleolus and dislocated his ankle bone. It is located 1/3 from medial malleolus. They are worn immediately above the ankle, resting on the lateral malleolus and medial malleolus. These are known as the medial and lateral malleolus. It is continuous with that on the medial malleolus. Together, their tendons pass behind the lateral malleolus. If the posterior malleolus is also fractured, this is called a trimalleolar fracture. A malleolus is the bony prominence on each side of the human ankle.