Chronic lateral ankle instability is a relatively frequent consequence after acute ankle sprain. In case of unsuccessful conservative treatment, surgical therapy is recommended to prevent osteoarthritis of the ankle joint. To date, different surgical methods have evolved. Yet, it remains unclear which approach reveals the best results. We hypothesized that the modified Broström–Gould procedure with suture anchor ligament fixation leads to superior postoperative results compared to the Broström–Gould procedure or the periosteal flap technique.
