Abstract
Safe and effective percutaneous CT-guided radiofrequency ablation of spinal osteoid osteomas can be performed using a targeted navigational bipolar electrode system. Articulating bipolar electrodes with built-in thermocouples along an electrode shaft and variable generator wattage settings allow optimal nidus access, particularly in challenging locations; provide precise real-time monitoring of ablation zone volume and geometry; and minimize the risk of undesired thermal injury.
Highlights
During the past decade, investigators have successfully used percutaneous radiofrequency (RF) ablation for definitive treatment of spinal osteoid osteomas using traditional unipolar straight electrodes with variable ablation times ranging from 4 to 30 minutes after reaching a desired plateau temperature.1
We describe the initial experience using a targeted multidirectional bipolar RF ablation electrode system for the treatment of spinal osteoid osteomas
Biopsy was performed in 5 patients, and all were diagnostic of osteoid osteoma
Summary
Institutional review board approval was obtained to retrospectively review the institutional data base for patients who underwent RF ablation for the treatment of spinal osteoid osteomas between May 2015 and April 2018. B This patient’s data have been previously published.[8] with the patient under general anesthesia for early detection of potentially impending thermal nerve/spinal cord injury.[7] an immediate postablation prophylactic ipsilateral nerve root block was performed when the nidus abutted the neuroforamen with no intact cortex. This was achieved by neuroforaminal injection of 10 mg of dexamethasone to improve postablation inflammation
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