A system and associated surgical method for the correction of a spinal deformity by derotating one or more vertebrae of the spine, including: a rotation rod a cephalad extender configured to be rotatably coupled to the rotation rod and coupled to a cephalad vertebra a caudal extender configured to be rotatably coupled to the rotation rod and coupled to a caudal vertebra and one or more intermediate extenders configured to be coupled to one or more intermediate vertebrae wherein, when the rotation rod is rotated, a portion of the rotation rod engages a portion of the one or more intermediate extenders, causing the one or more intermediate extenders to rotate about an axis of the spine, thereby causing the one or more intermediate vertebrae to also rotate about the axis. The extenders are each coupled to their respective vertebra via a pedicle screw or the like.
