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Postoperative lumbar computed tomography (CT) imaging. (A) CT-axial view showing the surgical corridor with the interspinous approach (red arrow); (B) same CT-axial view showing the extension of the decompression and how the tube can be moved in order to reach the subarticular area (white lines); (C) 3D-CT reconstruction in posterior-anterior view. The interlaminar enlarged space and both facet joints (white arrows) are preserved as shown.
