The high ankle sprain (HAS) is also known as an ankle syndesmosis injury. Some authors consider it a relatively rare occurrence, representing only 1% or less of all ankle sprains (1;2). Others consider it a much more common injury, especially in athletes (3;4). No studies were located that discuss prevention strategies or risk factors. However the mechanism of injury may provide some insight into risk factors. Several authors have reported a common mechanism is external rotation of the foot with the lower leg fixed. The potential for injury is increased when the ankle is in extreme dorsiflexion or plantar flexion. High risk activities include contact sports such as a American football and ice hockey (4;5). Competitive skiing has also been identified as increasing risk due to movements commonly encountered, dorsiflexion, plantarflexion and external rotation of the foot (6).
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