Fig. 2From: How to improve the safety of bicortical pedicle screw insertion in the thoracolumbar vertebrae: analysis base on three-dimensional CT reconstruction of patients in the prone positionSchematic showing image localization method for T12 level in the supine position. a, b shows that labial hyperosteogeny may occur on the upper and lower margin of the vertebral body. A shows that the boundary between the IVC and liver tissue passing through the hepatic vena cava sulcus is not obviousBack to article page