Clinical Study on the Treatment of Chronic Instability of the Lateral Ankle Joint by Repairing the Anterior Talofibular Ligament Under Total Arthroscopy

The patient receives intraspinal anesthesia or general anesthesia under supine position. Establish an anteromedial channel at the inner side of the tibial anterior tibial tendon at the level of the tibiotalar joint, and establish an anterolateral channel at the lateral angle of the talus. Exploring and clearing the ankle joint and dealing with possible combined injuries, such as talar cartilage injury, ankle impingement, and loose ankle joints. Then observe the lateral sulcus through the anterior medial channel, clean the synovium in the lateral sulcus, and explore the anterior talofibular ligament. A double-line anchor was inserted into the fibula side stop of the anterior talofibular ligament through the anterolateral channel. The anterior talofibular ligament was sutured using an outside-in technique in the anterior inferior safety zone of the distal end of the fibula. Fix the ankle joint with the suture after the dorsiflexion, neutral valgus position.