Firstly, all the patients underwent arthroscopic evaluation and treatment before the ligament repair through standard anterolateral and anteromedial portals. For patients with OLTs, after debridement of the articular cartilage lesion and subchondral cyst, the OLT was carefully measured, and the microfracture was performed to promote revascularization of the lesion.
Subsequently, an accessory portal at the anterior margin of the tip of the fibula was established to examine the lateral ligament complex, and expose and freshen the anterior talofibular ligament footprint on the fibula. A double-loaded suture anchor (Fastin RC 3.5 mm, Smith & Nephew, Andover, MA) was inserted into the distal fibula at the mid-portion of the footprint region. The anterior talofibular ligament and the inferior extensor retinaculum were sutured as previously described [16 (link)]. With the operated ankle placed at 5° of eversion, the suture knot was tightened with a knot pusher.