Auditory brainstem implantation: Anatomy and approaches

Noritaka Komune, Kaan Yagmurlu, Satoshi Matsuo, Koichi Miki, Hiroshi Abe, Albert L. Rhoton

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

BACKGROUND: Auditory brainstem implantation at the cochlear nuclei used mainly for neurofibromatosis type 2 patients with bilateral loss of the cochlear nerves has more recently been extended to the inferior colliculus. OBJECTIVE: To examine the microsurgical and endoscopic anatomy of the cochlear nuclei and inferior colliculus as seen through the translabyrinthine and retrosigmoid approaches used for cochlear nuclei and inferior collicular implantation. METHODS: Ten cerebellopontine angles of formalin-fixed adult cadaveric heads were examined with the aid of the surgical microscope and endoscope. The ascending auditory pathways between the cochlear nuclei and inferior colliculi and above were examined by the fiber dissection technique. RESULTS: Both the translabyrinthine and retrosigmoid routes provide sufficient exposure for concurrent tumor removal and implantation at either the cochlear nuclei or inferior colliculus. The position of the inferior colliculus in the auditory pathways and its accessibility in the infratentorial supracerebellar exposure directed through either the translabyrinthine or retrosigmoid approach makes it an alternative site for electrode placement if the cochlear nuclei are not functionally or structurally suitable for implantation. Endoscopic assistance may aid the exposure and electrode placement at either site. CONCLUSION: The translabyrinthine or retrosigmoid approaches provide access to the cochlear nuclei for implantation and also to the inferior colliculus through the translabyrinthine or retrosigmoid infratentorial supracerebellar route. The endoscope may aid in exposing either site.

Original languageEnglish
Pages (from-to)306-320
Number of pages15
JournalOperative Neurosurgery
Volume11
Issue number2
DOIs
Publication statusPublished - Jun 1 2015
Externally publishedYes

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Auditory Brain Stem Implantation
Cochlear Nucleus
Inferior Colliculi
Anatomy
Auditory Pathways
Endoscopes
Electrodes
Neurofibromatosis 2
Cerebellopontine Angle
Cochlear Implantation
Cochlear Nerve
Formaldehyde
Dissection
Head

All Science Journal Classification (ASJC) codes

  • Surgery
  • Clinical Neurology

Cite this

Komune, N., Yagmurlu, K., Matsuo, S., Miki, K., Abe, H., & Rhoton, A. L. (2015). Auditory brainstem implantation: Anatomy and approaches. Operative Neurosurgery, 11(2), 306-320. https://doi.org/10.1227/NEU.0000000000000736

Auditory brainstem implantation : Anatomy and approaches. / Komune, Noritaka; Yagmurlu, Kaan; Matsuo, Satoshi; Miki, Koichi; Abe, Hiroshi; Rhoton, Albert L.

In: Operative Neurosurgery, Vol. 11, No. 2, 01.06.2015, p. 306-320.

Research output: Contribution to journalArticle

Komune, N, Yagmurlu, K, Matsuo, S, Miki, K, Abe, H & Rhoton, AL 2015, 'Auditory brainstem implantation: Anatomy and approaches', Operative Neurosurgery, vol. 11, no. 2, pp. 306-320. https://doi.org/10.1227/NEU.0000000000000736
Komune, Noritaka ; Yagmurlu, Kaan ; Matsuo, Satoshi ; Miki, Koichi ; Abe, Hiroshi ; Rhoton, Albert L. / Auditory brainstem implantation : Anatomy and approaches. In: Operative Neurosurgery. 2015 ; Vol. 11, No. 2. pp. 306-320.
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