Comparison of microscopic and endoscopic views in cadaveric ears.

ABSTRACT:

Purpose

The advent of endoscopic otosurgery provides reduced tissue destruction with theoretically improved views, yet a quantification of the difference of exposure between microscopic and endoscopic approaches has not yet been performed in human specimens. The objective of this study was to assess the difference in views of cadaveric tympanic membranes when inspected with operating microscopes or endoscopes.

Methods

A circular graduated disc was inserted into eight cadaveric external ear canals to rest against the tympanic membrane. Three independent observers assessed the maximum possible observable radius of the graduated disc in each ear using a 0° endoscope and a surgical microscope in superior, inferior, posterior, and anterior directions.

Results

The endoscope

SUBMITTER: Guy J 

PROVIDER: S-EPMC7198634 | biostudies-literature | 2020 Jun

REPOSITORIES: biostudies-literature