Calcaneofibular ligament

Last revised by Craig Hacking on 17 Dec 2020

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

ADVERTISEMENT: Supporters see fewer/no ads

Cases and figures

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