Lateral ankle sprains are among the most common injuries in competitive sports and recreational activities. Many studies have shown that 10% to 30% of all athletic injuries are ankle injuries. In high-risk sports, ankle sprains account for 70% or more of all reported ankle injuries. Ankle sprains are often only partially treated. More than 40% of ankle sprains are recurrent, and this can lead to chronic ankle instability (CAI) and ankle osteoarthritis.
Source: Sports Health, Published online December 28, 2015