Figure 1

(A) CT imaging (sagittal and coronal view) and three-dimensional (3D) model of the T10–L2 section prior to PKP. (B) CT imaging (sagittal and coronal view) and 3D model of the T10–L2 section after PKP operation and the leakage cement (blue color). (C) Finite element model of the T10–L2 section: (1) intertransverse ligament; (2) supraspinal ligament; (3) interspinal ligaments; (4) posterior longitudinal ligament; (5) vertebral body(VB); (6) anterior longitudinal ligament; (7) bone cement; (8) intervertebral disc.