Lateral collateral ligament of the ankle

Zahra Sabahi and Dr Henry Knipe et al.

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)
    • psoterior inferior tibiofibular ligament (PITFL)
    • transverse tibiofibular ligament (TTFL)
    • interosseous ligament 
Anatomy: Lower limb

Anatomy: Lower limb

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Article information

rID: 26954
Section: Anatomy
Synonyms or Alternate Spellings:
  • Lateral collateral ligament complex of the ankle
  • Lateral collateral ankle ligament
  • lateral collateral ankle ligament complex

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