702 Hindfoot Stability Test - Introduction and Validation of a Diagnostic Test of Subtalar Instability in Deltoid Ligament Injury Associated with Ankle Fractures

Abstract Aim Deltoid ligament complex (DLC) injury repair in the presence of an ankle fracture remains a topic controversy current literature. No work literature has commented on hindfoot and subtalar instability DLC associated with fixation. Our aim was to introduce validate new method for assessment instability, when fixing injury. Method injury, specifically superficial DLC, controls not only but joint medial longitudinal arch. Valgus stressing can unmask instability. It noted by referencing position line parallel lateral aspect fibula, fibula line, probable. We used six morphologically normal cadaveric specimens test. Results Six were validation stability Pre-injury, no specimen illustrated bisection calcaneal tuberosity fibular test under fluoroscopy. Post-injury, all showed Conclusions The assesses valgus using drawn from border as reference point This validated cadavers.