The Convex Apical Reducer for Spinal Deformity Correction is a novel surgical instrument designed to assist with posterior correction of spinal deformities. The Convex Apical Reducer applies direct force while also providing fulcrum for elongation and derotation during posterior deformity correction. The device will also include modular and adjustable options for length, angle, and derotation arm. This device provides professionals working in spinal corrections an instrument tailored for targeted convex apical manipulation.