Ankle injuries are some of the most common injuries in the body. Often, these injuries are sprains, or damage to the ligaments that hold the ankle joint together on either side.
Ankle sprains account for 45% of all sports injuries and 16% of all hospital emergency department visits. Although many of these injuries are relatively minor, 19-72% of patients with ankle sprains will have another sprain on the same ankle, and 70% will develop chronic ankle instability (CAI).
Because ankle injuries are often insufficiently diagnosed and treated, the incidence of later complications remains excessively high. Unfortunately, patients are told that “It’s only an ankle sprain”, and the treatment, if any, is minimal.
To understand the reasons for complications of ankle injuries, one must understand the anatomy of the ankle. The outside or lateral portion of the ankle joint is held together by 3 ligaments, while the inside or medial portion of the ankle joint itself together by 4 ligaments.

