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Coronal images of reconstructed three-dimensional computed tomography in patient 3.
A. Before surgery.
B. Six months after surgery. Clearance between the L4 and L5 pedicles was enlarged by removing the caudal aspect of the L4 pedicle (circle).
C. Thirty-four months after surgery. Clearance between the L4 and L5 pedicles decreased because progressed degenerative scoliosis (circle).
