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Updated: May 5, 2026

Endaural Endoscopic Atticoantrotomy Retrograde Mastoidectomy using a Constant Suction Bone-drilling Technique
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Modified Circular Knife in Two-Handed Endoscopic Ear Surgery: A Technical Note.

Sapna Ramkrishna Parab1,2, Mubarak Muhamed Khan1,2,3, Rizwan Abduljabbar Memon4

  • 1Sushrut ENT Hospital and Dr. Khan?s Research Center, Talegaon Dabhade, India.

Indian Journal of Otolaryngology and Head and Neck Surgery : Official Publication of the Association of Otolaryngologists of India
|August 12, 2024
PubMed
Summary

Endoscopic middle ear surgery requires specialized instruments. A modified circular knife improves access and visualization, enhancing two-handed endoscopic ear procedures.

Keywords:
Angled instrumentsAngulated circular knifeEndoscope holderEndoscopic ear surgeryMicro ear instruments

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Area of Science:

  • Otolaryngology
  • Surgical Instrumentation
  • Minimally Invasive Surgery

Background:

  • Endoscopic ear surgery offers improved visualization but necessitates instrument modifications.
  • Standard instruments may hinder access to difficult middle ear regions.
  • Instrument design is critical for safe and effective endoscopic otologic procedures.

Purpose of the Study:

  • To describe a modified circular knife for endoscopic middle ear surgery.
  • To discuss the advantages and applications of this new instrument.
  • To highlight its utility in two-handed endoscopic ear surgery.

Main Methods:

  • Development and description of a modified circular knife.
  • Evaluation of the instrument's performance in cadaveric or simulated settings (details not provided in abstract).
  • Application during two-handed endoscopic ear surgery procedures.

Main Results:

  • The modified circular knife facilitates access to challenging areas of the middle ear.
  • It allows for precise dissection without compromising the endoscope's view.
  • The instrument supports effective two-handed techniques in endoscopic ear surgery.

Conclusions:

  • The modified circular knife is a valuable addition to endoscopic ear surgery instrumentation.
  • It addresses the need for specialized tools in minimally invasive otologic procedures.
  • This instrument enhances surgical capabilities and potentially patient outcomes.