Sprain Ankle Treatment - San Francisco Podiatrist Union Square CA br Dr. Bill Metaxas discusses the symptoms, causes and treatments for Sprain Ankle. br br SPRAINS br Injuries to the outside of the ankle associated with rolling of the foot are known as ankle sprains. br The ankle ligaments provide stability to the ankle by helping to hold the ankle bone within the ankle joint. The ankle ligaments usually involved in an ankle sprain are also known as the lateral collateral ligaments of the ankle. The lateral collateral ligaments of the ankle are comprised of the anterior talofibular ligament, the calcaneofibular ligament and the posterior talofibular ligament. br The lateral ligaments provide stability to the ankle throughout the gait cycle as the foot bends up and down. Therefore total lateral stability of the ankle is provided by these three ligaments.