Augmented reality-assisted microvascular decompression for glossopharyngeal neuralgia: a case report.

Glossopharyngeal neuralgia is a rare condition characterized by pain along the distribution of the glossopharyngeal nerve. Surgical approaches via microvascular decompression represent a common treatment strategy. For this procedure, an understanding of the location of the cranial nerve and the offending vasculature is critically important. A mixed reality system was used to register patient-specific 3D models onto the patients head for operative planning and anatomical visualization. A 58-year-old female presented to neurosurgery with severe right-sided facial, tongue, and jaw pain unresponsive to multiple conservative therapies including medication. T2-weighted MRI with FIESTA sequence demonstrated right posterior inferior communicating artery compression of the right glossopharyngeal nerve entry zone. An augmented reality system was used to visualize the patients' anatomy overlaid onto the patients' head. A microvascular decompression of Cranial Nerves IX and X was performed via a retrosigmoid approach. Patient obtained significant relief of preoperative pain symptoms without complications.