rhizotomy


rhizotomy
Section of the spinal nerve roots for the relief of pain or spastic paralysis. SYN: radicotomy, radiculectomy. [G. rhiza, root, + tome, section]
- facet r. a percutaneous radiofrequency lysis of the innervation of a facet.
- posterior r. section of posterior spinal root. SYN: Dana operation.
- trigeminal r. 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. SYN: retrogasserian neurectomy, retrogasserian neurotomy.

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rhi·zot·o·my rī-'zät-ə-mē n, pl -mies the operation of cutting the anterior or posterior spinal nerve roots

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n.
a surgical procedure in which selected nerve roots are cut at the point where they emerge from the spinal cord. In posterior rhizotomy the posterior (sensory) nerve roots are cut for the relief of intractable pain in the organs served by these nerves. An anterior rhizotomy - the cutting of the anterior (motor) nerve roots - is sometimes done for the relief of severe muscle spasm or dystonia.

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rhi·zot·o·my (ri-zotґə-me) [rhizo- + -tomy] interruption of a cranial or spinal nerve root; see also neurolysis (def. 4).

Medical dictionary. 2011.

Look at other dictionaries:

  • rhizotomy — [rī zät′ə mē] n. pl. rhizotomies [ RHIZO + TOMY] a surgical cutting of the spinal nerve roots, esp. of the posterior nerves, as for relieving pain …   English World dictionary

  • Rhizotomy — Interventions infobox Name = Rhizotomy ICD10 = ICD9 = 03.1 MeshID = D019051 OtherCodes = A rhizotomy (IPA|ɹaɪˈzɑtəmi) is a neurosurgical procedure that selectively severs problematic nerve roots in the spinal cord, most often to relieve the… …   Wikipedia

  • rhizotomy — n. a surgical procedure in which selected nerve roots are cut at the point where they emerge from the spinal cord. In posterior rhizotomy the posterior (sensory) nerve roots are cut for the relief of intractable pain in the organs served by these …   The new mediacal dictionary

  • rhizotomy — noun (plural mies) Etymology: International Scientific Vocabulary Date: 1911 the operation of cutting the anterior or posterior spinal nerve roots …   New Collegiate Dictionary

  • rhizotomy — /ruy zot euh mee/, n., pl. rhizotomies. Surg. the surgical section or cutting of the spinal nerve roots, usually posterior or sensory roots, to eliminate pain. [1910 15; RHIZO + TOMY] * * * …   Universalium

  • rhizotomy — noun The surgical procedure of cutting the anterior or posterior spinal nerve roots in order to relieve pain, or reduce muscle spasms …   Wiktionary

  • rhizotomy — n. surgical cutting of a spinal nerve root as a method of relieving pain (Medicine) …   English contemporary dictionary

  • rhizotomy — rhi·zot·o·my …   English syllables

  • rhizotomy — rhi•zot•o•my [[t]raɪˈzɒt ə mi[/t]] n. pl. mies srg the surgical cutting of a spinal nerve root • Etymology: 1910–15 …   From formal English to slang

  • rhizotomy — /raɪˈzɒtəmi/ (say ruy zotuhmee) noun (plural rhizotomies) the surgical section or cutting of the spinal nerve roots, usually posterior or sensory roots, to eliminate pain or paralysis …   Australian English dictionary