When the normally stable and strong ankle joint is sprained or strained frequently or acutely enough, ligament damage renders it weaker and prone to injury. This issue, edited by Nicola Maffulli MD, MS, PhD, FRCS(Orth), presents different techniques for fixing ankle instability and impingement that can get patients back on their feet or on the field without reinjury. The key words include: chronic ankle instability, augmentation, open and percutaneous method, scoring systems, gracilis, plantaris, varus tibiotalar joint, and deltoid ligament injuries.