Snapping phenomenon around the ankle: An anatomy-based review

Figure 10  Illustration of the structures contributing to ankle snapping. A: Illustration of the structures contributing to anterior ankle snapping - the tibialis anterior tendon, extensor digitorum longus tendon, peroneus tertius tendon, along with the talar head, all covered by the inferior extensor retinaculum; B: Illustration of anterolateral snapping due to an insufficient, torn, or scarred inferior extensor retinaculum, resulting in medial dislocation of the extensor digitorum longus tendon during foot adduction; C: Illustration of the structures contributing to medial ankle snapping - the tibialis posterior tendon and flexor digitorum longus traversing the tarsal tunnel, covered by the flexor retinaculum; D: Illustration of the structures contributing to posterior ankle snapping - the flexor hallucis longus and plantaris tendons.