The inferior tibiofibular joint is a syndesmosis and lacks articular and synovium. The distal fibula is situated in the fibular notch of the lateral aspect of the distal tibia and is bound to it by several ligaments (Figs. 16-12A, C, 16-14, and 16-15). The anterior and posterior tibiofibular ligaments pass in front of and behind the syndesmosis. They are both directed downward and inward to check separation of the two bones. The inferior transverse ligament is a thickened band of fibers that is closely related to the posterior tibiofibular ligament (Fig. 16- 12C). It passes from the posterior margin of the inferior tibial articular surface downward and laterally to the malleolar fossa of the fibula. This ligament is lined inferiorly with articular cartilage where it contacts the posterolateral talar articular surface during extreme plantar flexion. The interosseous ligament is a continuation of the interosseous membrane of the tibia and fibula (Fig. 16-12C). It extends between the adjacent surfaces of the bones at the syndesmosis.