Ankle sprain injuries are the most common injury sustained during sporting activities. One-sixth of all sports injury loss time is from ankle sprains. Each year, an estimated 1 million people present to physicians with acute ankle injuries. Three-quarters of ankle injuries involve the lateral ligamentous complex, comprised of the anterior talofibular-ligament (ATFL), the calcaneofibular ligament (CFL) and the posterior talofibular ligament (PTFL). Lateral ankle sprains typically occur when the rearfoot undergoes excessive supination on an externally rotated lower leg. The diagnosis of a sprain relies on the medical history including symptoms, as well as making a differential diagnosis mainly in distinguishing it from strains or bone fractures. Despite their prevalence in society, ankle sprains still remain a difficult diagnostic and therapeutic challenge in the athlete, as well as in society in general. The high incidence of ligamentous ankle injuries requires clearly defined acute care and a broad knowledge of new methods in rehabilitation. In addition to rapid pain relief, the main objective of treatment is to quickly restore the range of motion of the ankle without any major loss of proprio-ception, thereby restoring full activity as soon as possible. The purpose of this article is to review the anatomy, pathomechanics, investigation, diagnosis and management of lateral ankle sprains.
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