Cortical bone trajectory fixation in cemented vertebrae in lumbar degenerative disease: A case report

Figure 1 Magnetic resonance imaging showing L3, L4 fracture and L2/3 spinal stenosis. A and B: Abnormal signs in the vertebral body of L3, L4 and segmental stenosis of L2/3 in sagittal images; C and D: Spinal stenosis of L2/3 in the cross-sectional images.

Figure 2 Leakage of bone cement located in the right intervertebral foramen of L3/4. A: Sagittal image; B and C: Cross-sectional images of L3/4.

Figure 3 Magnetic resonance imaging showing lumbar disc herniation. A and B: The herniated disc in the sagittal plane (orange arrow); C and D: The herniated disc in the axial plane (orange arrow).

Figure 4 Screw implantation angles and entry points in the intraoperative images. A: Anteroposterior image; B: Lateral image.

Figure 5 Morphology and location of implants from three-dimensional reconstruction images. A: Anteroposterior image; B: Lateral image.