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Updated: Jul 29, 2025

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Discovering Middle Ear Anatomy by Transcanal Endoscopic Ear Surgery: A Dissection Manual
Published on: January 11, 2018
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Endoscopic Middle Ear Cleft Surgery (EMES): Our Philosophy, Concept and Application
Anupam Hazarika1, Jyotirmoy Phookan2, Shilpi Gupta3,4
1ENT and Head and Neck Surgeon, AEHNC and Centre for Ear Diseases, Jorhat, Assam India.
Summary
This study introduces a transcanal endoscopic dual-hand approach for ear surgery, preserving anatomical structures and improving outcomes. The technique minimizes bone drilling, enhancing patient comfort and long-term results.
Area of Science:
- Otolaryngology
- Minimally Invasive Surgery
- Surgical Anatomy
Background:
- Preserving healthy anatomical structures in ear surgery is crucial for functional outcomes.
- Traditional mastoidectomy techniques often involve significant bone drilling, potentially impacting healthy tissues.
Purpose of the Study:
- To evaluate a transcanal endoscopic dual-hand approach for middle ear and mastoid surgeries.
- To assess the efficacy of minimizing bone drilling while preserving ossicles and healthy surrounding tissues.
Main Methods:
- A prospective study over 12 years (2009-2021) involving 157 adult patients.
- Utilized transcanal endoscopic dual-hand technique with minimal posterior atticotomy and proximal aditotomy.
- Employed angled endoscopes (30 and 45 degrees) and specialized instruments for disease removal.
Main Results:
- Achieved a high graft uptake rate of 93.6%.
- Demonstrated successful disease clearance and preservation of ossicles, middle ear mucosa, and mastoid cortex.
- Confirmed aditus patency through visual inspection, reducing the need for extensive bone drilling.
Conclusions:
- The transcanal endoscopic dual-hand approach is effective for ear surgery, offering functional preservation.
- Minimizing bone drilling and preserving anatomical structures lead to better postoperative results and long-term follow-up.
- This technique enhances patient comfort and surgical efficiency compared to single-hand methods.

