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To confirm diagnosis, full-leg radiographs are used to inspect for fractures of the proximal fibula and widening of the interosseous clear space (or tibiofibular clear space). The interosseous clear space is the area between the medial side of the fibula and lateral side of the tibia. A peer-reviewed study, published in Injury in 2004, found ...
The final measurement is the medial clear space, the distance between the lateral aspect of the medial malleolus and the medial border of the talus at the level of the talar dome, with a measurement greater than 4 mm being abnormal. Loss of any of these normal anatomic spaces can indirectly reflect ligamentous injury or occult fracture, and can ...
The inferior tibiofibular joint, also known as the distal tibiofibular joint (tibiofibular syndesmosis), is formed by the rough, convex surface of the medial side of the distal end of the fibula, and a rough concave surface on the lateral side of the tibia.
tibiofibular syndesmosis intact or only partially torn, but no widening of the distal tibiofibular articulation; medial malleolus may be fractured or deltoid ligament may be torn; variable stability; Type C. Fracture of the fibula proximal to the syndesmosis. Typical features: above the level of the ankle joint
The superior tibiofibular articulation (also called proximal tibiofibular joint) is an arthrodial joint between the lateral condyle of tibia and the head of the fibula.. The contiguous surfaces of the bones present flat, oval facets covered with cartilage and connected together by an articular capsule and by anterior and posterior cruciate ligaments.
The inferior transverse ligament of the tibiofibular syndesmosis is a connective tissue structure in the lower leg that lies in front of the posterior ligament.It is a strong, thick band, of yellowish fibers which passes transversely across the back of the ankle joint, from the lateral malleolus to the posterior border of the articular surface of the tibia, almost as far as its malleolar process.
In addition, at the inferior tibiofibular joint, the articulating surfaces of the bones lack cartilage and the narrow gap between the bones is anchored by fibrous connective tissue and ligaments on both the anterior and posterior aspects of the joint. Together, the interosseous membrane and these ligaments form the tibiofibular syndesmosis.
The anterior ligament of the head of the fibula (anterior superior ligament) consists of two or three broad and flat bands, which pass obliquely upward from the front of the head of the fibula to the front of the lateral condyle of the tibia.