Ankle Sprains By Danielle Campagne, MD, University of California, San Francisco Reviewed / Revised Mar 2021 | Modified Sep 2022 View Patient Education Symptoms and Signs Diagnosis Treatment Key Points Topic Resources Ankle Sprain (Second Degree) Ligaments of the ankle Ankle Sprain With Instability How To Examine the Ankle How To Apply a Posterior... How To Apply a Sugar Tong... Ankle sprains are very common, most often resulting from turning the foot inward (inversion).