Fig. 2

 After 3 months of PKP surgery, the patient was hospitalized again with severe lower-back pain and paraplegia of both lower limbs. A–D Imaging examination revealed that the bone cement in the L1 vertebral body was displaced, the bone of the T12/L1 vertebral body was destroyed, the thoracolumbar segment formed a kyphotic deformity centered on T12/L1, the corresponding level of spinal canal stenosis, and the dural sac compression. E–F Single posterior decompression of lesions and bone cement removal, spinal canal decompression, intervertebral bone graft fusion, pedicle screw internal fixation surgery, and postoperative spinal sequence complete recovery