An exemplary system for correcting a spinal deformity includes a plurality of transverse rods, a longitudinal rod, and at least one node. The plurality of transverse rods each includes a first end for coupling with an extension member of a spinal fixation system and a second end. The longitudinal rod extends transverse to the transverse rods. The at least one node receives the second ends of first and second transverse rods and the longitudinal rod within a receiving portion and an adjustment member selectively secures the second ends.