Fig 4.

Creation of the calcaneal tunnel (the left ankle). (A) Viewed from the AAL portal, the CFL remnant and the LTCL remnant are debrided by the shaver through the ST portal. The surgeon must pay attention to the peroneal tendons as they run just superficial to the CFL. (B) A 25- to 30-mm deep calcaneal tunnel for the CFL graft is overdrilled after the guidewire insertion through the ST portal. The subtalar joint is to the left side of the picture. The peroneal tendon is observed on the right side of the drill. Both panels are from patient 1. (AAL, accessory anterolateral; CFL, calcaneofibular ligament; LTCL, lateral talocalcaneal ligament; ST, subtalar.)