| rhizotomy | Surgical interruption of a spinal or cranial nerve root. (12 Dec 1998) |
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| anterior rhizotomy | Section of anterior spinal root. (05 Mar 2000) |
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| posterior rhizotomy | Section of posterior spinal root. Synonym: Dana's operation. (05 Mar 2000) |
| trigeminal rhizotomy | Division or section of a sensory root of the fifth cranial nerve, accomplished through a subtemporal (Frazier-Spiller operation), suboccipital (Dandy operation), or transtentorial approach. Synonym: retrogasserian neurectomy, retrogasserian neurotomy. (05 Mar 2000) |
| facet rhizotomy | A percutaneous radio frequency lysis of the innervation of a facet. (05 Mar 2000) |