The Cannulated (Subtalar) Screw is a titanium alloy implant designed for the treatment of pes plano-valgus (flatfoot) in children and adolescents. Indicated for fixed, flexible, and pes plano-valgus with Achilles tendon contracture, it is inserted through the sinus tarsi to stabilize the hindfoot. The implant features a cannulated design for precise insertion, a large-pitch thread for enhanced pull-out resistance, and a smooth shaft to reduce tissue irritation. Available in diameters of 4 mm and inner diameters of 2.1 mm, the screws are offered in lengths from 7 to 15 mm.