Ankle Impingement Sign (Hyperdorsi Flexion Test)
What is an Ankle Impingement Sign? The Ankle Impingement Sign is a physical examination test used to assess for anterior ankle impingement syndrome (AAIS). AAIS is a condition in which the front of the ankle joint becomes impinged, or compressed, during dorsiflexion (bending the foot upwards). The anterior and posterior ankle impingement tests are part…