Ankle instability is a term that describes patients’ perception that their ankle is “giving way.” Laxity of the ankle ligaments is found on examination, caused by acute ankle sprain or recurrent injury (chronic ankle instability). Ankle instability can involve the lateral or medial ankle ligaments. Ankle sprains are a common sports-related injury, accounting for up to 40% of all athletic injuries. Sprains are particularly prevalent among basketball, soccer, and football players and account for 10% of emergency department visits.

Anatomy

The lateral ankle ligament complex ...

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