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A Guide to Temporal Bone Dissection: Internal Auditory Canal Dissection (Part 5 of 6)

Authors

Mohamedkazim M. Alwani, MD1, 3

Jon L. Harper, BS1, 3

Rick F. Nelson, MD PhD1, 2, 3

Author Affiliations

Department of Otolaryngology – Head and Neck Surgery1

Department of Neurological Surgery2

Indiana University School of Medicine3

Video Description

This video demonstrates key steps in the dissection of the internal auditory canal during lab dissection of the temporal bone. The goal of this video is to serve as a supplementary teaching resource for resident-level surgical trainees by demonstrating key surgical landmarks and proper lab dissection technique. This video builds on part four of our video series and demonstrates fundamental steps involved in the dissection of the internal auditory canal including: establishing an inferior trough and identification of the cochlear aqueduct, establishing a superior trough and identification of the labyrinthine segment of the facial nerve, and blue-lining the internal auditory canal from porous to fundus. Key surgical landmarks demonstrated in the course of this video include: internal auditory canal, cochlear aqueduct, meatal segment of the facial nerve, labyrinthine segment of the facial nerve, 1st genu of the facial nerve, tympanic segment of the facial nerve, 2nd genu of the facial nerve, mastoid segment of the facial nerve.

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Review A Guide to Temporal Bone Dissection: Internal Auditory Canal Dissection (Part 5 of 6).

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