Calcaneofibular ligament

Assoc Prof Craig Hacking and Dr Henry Knipe et al.

The calcaneofibular ligament (CFL) is the middle ligament of the lateral collateral ligament complex of the ankle and stabilizes both the ankle and subtalar joints.

Gross anatomy

The CFL is an extracapsular round cord measuring 20-25 mm long x 6-8 mm width. Its origin is distal to the anterior talofibular ligament on the tip of the lateral malleolus and courses posteroinferiorly and medially to insert onto the lateral surface of the calcaneus.

  • lies deep to the peroneal tendons 2

Radiographic appearance

  • often only partially imaged on coronal and axial images
  • PD: uniformly low signal 1
Anatomy: Lower limb

Anatomy: Lower limb

Article information

rID: 26960
Section: Anatomy
Synonyms or Alternate Spellings:
  • Calcaneo-fibular ligament

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Cases and figures

  • Figure 1
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  • Figure 2: lateral ligaments (Gray's illustrations)
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  • Figure 3: lateral talocrural ligaments (Gray's illustration)
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  • Case 1: calcaneofibular ligament sprain
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  • Case 2
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