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. 2019 Jun 19;10:104. doi: 10.25259/SNI-258-2019

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Copyright: © 2019 Surgical Neurology International

This is an open-access article distributed under the terms of the Creative Commons Attribution-Non Commercial-Share Alike 4.0 License, which allows others to remix, tweak, and build upon the work non-commercially, as long as the author is credited and the new creations are licensed under the identical terms.

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Figure 1: — Fiducial placement procedure. Preoperative sagittal (Panel a) and axial (Panel b) T2-weighted magnetic resonance imaging of the thoracic spine showing a left thoracic disc herniation at T10-T11 in 56-year-old women resulting in spinal cord compression and myelopathy. The patient underwent preoperative pedicle marking under fluoroscopic guidance. Panel c: At the level of the index pedicle, an 11-gauge, 125 mm long trocar is inserted. Panel d: Retrieval of bony fragment with a 13-gauge trepan in the middle portion of the pedicle. Panel e: Two microcoils inserted into the bony defect. Panel f: Reinsertion of the bone cylinder in the defect to lock the fiducial in the pedicle.