Which percutaneous procedures are used in the treatment of trigeminal neuralgia (TN)?

Updated: Sep 30, 2019
  • Author: Kim J Burchiel, MD, FACS; Chief Editor: Brian H Kopell, MD  more...
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Three percutaneous procedures for TN have been described: percutaneous radiofrequency trigeminal gangliolysis (PRTG), percutaneous retrogasserian glycerol rhizotomy (PRGR), and percutaneous balloon microcompression (PBM). [9]

In each procedure, the surgeon introduces a trocar or needle lateral to the corner of the mouth and, under fluoroscopic guidance, into the ipsilateral foramen ovale. The ganglion is lysed at this location. Patients are left with minor, local, residual facial numbness after PRTG, may occasionally lose sensation after PRGR, and rarely do so after PBM.

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