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COMMENTARY Is an Intact Posterior Vertebral Body Cortex Protective for Percutaneous Ablation? fter the lung and liver, bone is the most common site for damage may occur. The results of previous animal experiments Ametastatic disease and the spine is the most common site of assessing the safety of RFA in proximity to the spinal cord have 1 10,11 bony metastases. Roughly 70% of patients with cancer will de- been inconclusive. However, these were monopolar RFA sys- velop metastatic disease. Of these, 40% develop spinal metastatic tems, whereas the current study used a bipolar system. There are disease and 10%–20% of these will develop metastatic spinal cord no prior studies assessing the safety of cryoablation or MWA compression. within the posterior vertebral body. This study showed that for Treatment of spinal metastases is usually palliative, with the cryoablation and MWA, the posterior vertebral body cortex does goals of therapy including timely control of pain, local tumor not act as an insulating barrier. For these 2 modalities, the abla- control to prevent neurologic deficits, and mechanical stabiliza- tion probes must be accurately placed in the vertebral body and tion to preserve function. Traditional treatment has been nonin- the ablation zone must
American Journal of Neuroradiology – American Journal of Neuroradiology
Published: Aug 1, 2017
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