Arthroscopic anatomical reconstruction of lateral collateral ligaments with ligament advanced reinforcement system artificial ligament for chronic ankle instability

Figure 7 We drilled the talar tunnel under monitoring of the anterolateral portal. A: The tunnel entrance was located at the talar footprint of the anterior talofibular ligament, which was below the triangular region of the talus on the midpoint between the superolateral edge of the talar body and the subtalar joint; B: We drilled a 3 mm × 20 mm talar tunnel at the anatomical insertion; C: The length of the tunnel was strictly controlled within 20 mm.