During percutaneous vertebroplasty procedure in patients with malignant tumors, the complication rate increases owing to the risk of leakage of cement resulting from the vertebral body destruction, but as also seen in our case, for the extrusion of neoplastic tissue and potentially compression on the spinal cord.

From the manuscript

Percutaneous vertebroplasty and spinal cord compression: a case report

Abstract
This report describes a 60-year-old woman with intensive back pain due to metastatic vertebral body collapse, who underwent percutaneous vertebroplasty. Subsequently, the patient developed metastatic lesion extrusion into the spinal canal because of pressure of the cement, with compression of the left anterolateral spinal cord. During percutaneous vertebroplasty procedure in patient with malignant tumors, the complication rate increases owing to the risk of leakage of cement resulting from the vertebral body destruction, but as also seen in our case, for the extrusion of the neoplastic tissue and increase of the pressure in the vertebral body due to the introduction of the cement.