1. A method of correcting a spinal deformity, the method comprising: extending a first rod along a first side of a spine of a patient; securing a first anchor to a vertebra of the spine; receiving the first rod with the first anchor such that the first rod is secured against substantial lateral translation relative to the first anchor and the first rod is allowed to slide axially relative to the first anchor through a first pivot point and to change in at least two of pitch, yaw, and roll about the first pivot point during correction; securing a second anchor to a vertebra of the spine; receiving the first rod with the second anchor such that the first rod is secured against substantial lateral translation relative to the second anchor and is allowed to change in at least pitch and yaw about a second pivot point during correction; extending a second rod along a second side of the spine of the patient; securing a third anchor to a vertebra of the spine; receiving the second rod with the third anchor such that the second rod is secured against substantial lateral translation relative to the third anchor during correction and such that the second rod is secured against changes in pitch, yaw, roll, and axial sliding; securing a fourth anchor to a vertebra of the spine; receiving the second rod with the fourth anchor such that the second rod is secured against substantial lateral translation relative to the fourth anchor; and laterally coupling the first rod and the second rod such that the lateral coupling facilitates derotation and translation of the spine.
1. A method of correcting a spinal deformity, the method comprising: extending a first rod along a first side of a spine of a patient; securing a first anchor to a vertebra of the spine; receiving the first rod with the first anchor such that the first rod is secured against substantial lateral translation relative to the first anchor and the first rod is allowed to slide axially relative to the first anchor through a first pivot point and to change in at least two of pitch, yaw, and roll about the first pivot point during correction; securing a second anchor to a vertebra of the spine; receiving the first rod with the second anchor such that the first rod is secured against substantial lateral translation relative to the second anchor and is allowed to change in at least pitch and yaw about a second pivot point during correction; extending a second rod along a second side of the spine of the patient; securing a third anchor to a vertebra of the spine; receiving the second rod with the third anchor such that the second rod is secured against substantial lateral translation relative to the third anchor during correction and such that the second rod is secured against changes in pitch, yaw, roll, and axial sliding; securing a fourth anchor to a vertebra of the spine; receiving the second rod with the fourth anchor such that the second rod is secured against substantial lateral translation relative to the fourth anchor; and laterally coupling the first rod and the second rod such that the lateral coupling facilitates derotation and translation of the spine. 2. The method of claim 1 , wherein the first and second anchors are secured to vertebra outside of an apical region of the spine, the method further comprising immobilizing an apical region of the spine and leaving a superior region of the spine adjacent to the apical region and an inferior region of the spine adjacent to the apical region free to move in at least one degree of freedom.