The cervical ligament of the ankle occupies the lateral portion of the tarsal sinus entrance, providing additional subtalar stability alongside the interosseous talocalcaneal ligament. It is a secondary restraint against excessive subtalar inversion. Cervical ligament tears in lateral ankle sprains contribute to the persistent subtalar instability that can develop after recurrent inversion injuries.
| Origin | Superior calcaneal surface at the entrance to the tarsal sinus (calcaneal sulcus) |
|---|---|
| Insertion | Inferior talar neck |
| Actions | Restrains subtalar inversion; a secondary subtalar stabiliser alongside the interosseous ligament |
|---|
The cervical ligament is identified on MRI in the lateral aspect of the tarsal sinus between the ATFL and the interosseous talocalcaneal ligament. Its disruption alongside the ATFL in severe lateral ankle sprains contributes to subtalar instability that may require specific rehabilitation targeting subtalar proprioception.
Subtalar stabiliser disruption in severe lateral ankle sprains contributing to subtalar instability requiring targeted subtalar proprioceptive rehabilitation.
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