lateral collateral ligament of the ankle
Lateral
collateral ligament of the ankle • Lateral collateral ankle ligaments (Gray's illustration) - Ganzer Fall bei Radiopaedia
The lateral collateral ligament (complex) of the ankle is a set of three ligaments that resist inversion of the ankle joint. They are more commonly injured than the medial collateral (deltoid) ligament of the ankle. They run from the lateral malleolus of the fibula to the talus and calcaneus.
Gross anatomy
The fan-like arrangement is composed of three ligaments:
- anterior talofibular ligament (ATFL)
- anterior component
- extends anteromedially from the anterior margin of the fibular malleolus to the talus, attached inferior of its lateral articular facet and to the lateral aspect of its neck
- calcaneofibular ligament
- middle component
- runs from the depression anterior to the apex of the fibular malleolus to a tubercle on the lateral calcaneal surface
- crossed by fibularis longus and brevis
- posterior talofibular ligament (PTFL)
- posterior component
- runs horizontally from the distal part of the lateral malleolar fossa to the lateral tubercle of the posterior talar process
- a tibial slip of fibers connects it to the medial malleolus
- the syndesmosis can be considered as part of the lateral complex
- anterior inferior tibiofibular ligament (AITFL)
- posterior inferior tibiofibular ligament (PITFL)
- transverse tibiofibular ligament (TTFL)
- interosseous ligament