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Related Experiment Video

Updated: Aug 25, 2025

Step-by-Step Stapedotomy through Transcanal Exclusive Endoscopic Approach
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Endoscopic stapes surgery: How I do it?

B L Shrestha1

  • 1Department of ENT-HNS, Dhulikhel Hospital, Kathmandu University Hospital, Kathmandu University School of Medical Sciences, Dhulikhel, Kavre, Nepal.

Kathmandu University Medical Journal (KUMJ)
|October 18, 2022
PubMed
Summary

Endoscopic stapes surgery offers improved preservation of the chorda tympani nerve and comparable hearing outcomes to traditional microscopic methods. This technique is a safe and reliable approach for managing otosclerosis.

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Area of Science:

  • Otolaryngology
  • Minimally Invasive Surgery
  • Otologic Surgery

Background:

  • Traditional microscopic stapes surgery can pose risks to the chorda tympani nerve (CTN).
  • Otosclerosis management requires precise surgical techniques to preserve hearing and neural structures.

Purpose of the Study:

  • To evaluate the efficacy and safety of transcanal endoscopic stapedotomy.
  • To compare the outcomes of endoscopic stapes surgery with microscopic techniques, focusing on CTN preservation and audiological results.

Main Methods:

  • Stapes surgery was performed using rigid nasal endoscopes (4-mm diameter, 18-cm length).
  • Technique involved transcanal endoscopic stapedotomy for otosclerosis treatment.

Main Results:

  • Endoscopic approach demonstrated better preservation rates of the chorda tympani nerve (CTN).
  • Minimal curetting of the outer attic wall reduced iatrogenic injury to the CTN.
  • Audiometric results were comparable to those achieved with microscopic stapes surgery.

Conclusions:

  • Transcanal endoscopic stapedotomy is a reliable and safe technique for otosclerosis.
  • Endoscopic stapes surgery offers advantages in nerve preservation and comparable hearing outcomes.

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