What Is A Syndesmosis Sprain?

What Is A Syndesmosis Sprain? Definition/Description. A syndesmotic, or ‘high’ ankle sprain is one that involves the ligaments binding the distal tibia and fibula at the Distal Tibiofibular Syndesmosis. Injuries can occur with any ankle motion, but the most common motions are extreme external rotation or dorsiflexion of the Talus. How do you treat syndesmosis