Case 1. Case 1. A, Sagittal reconstructed CT scan performed same day as vertebroplasty shows postvertebroplasty appearance with hyperattenuated bone cement.

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High-signal-intensity lesions on T2-weighted MR images

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Presentation transcript:

Case 1. Case 1. A, Sagittal reconstructed CT scan performed same day as vertebroplasty shows postvertebroplasty appearance with hyperattenuated bone cement in T8, T10, and L1 vertebral bodies. Bone cement filled the anterior vertebral body, the posterior vertebral body, and the epidural space (arrows). The technical flaw in this case was allowing the bone cement to fill the posterior vertebral body and continue filling in the spinal canal.B, Axial view at T7/T8 disk level performed same day as vertebroplasty shows bone cement in the epidural space (black arrows) and pulmonary arteries (white arrows).C, T2-weighted MR imaging performed 50 days after vertebroplasty shows low-signal-intensity bone cement inside the anterior and posterior aspects of T8, T10, and L1 vertebral bodies (white arrows) and postlaminectomy appearance with bloody fluid collection (white arrowheads) causing posterior epidural compression to the spinal cord. There is high-signal- intensity change in the spinal cord on the T2-weighted images, because of compressive myelopathy or previous thermal injury. The posterior epidural compression and signal intensity change of the spinal cord are similar to the MR imaging performed 5 days after the second decompressive surgery. These changes were not present on MR imaging performed 2 days before vertebroplasty.D, Fibrosis of arachnoid membrane (H&E stain). M.M.H. Teng et al. AJNR Am J Neuroradiol 2006;27:224-229 ©2006 by American Society of Neuroradiology