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Updated: Feb 28, 2026

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Step-by-Step Stapedotomy through Transcanal Exclusive Endoscopic Approach
Published on: March 5, 2022
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How to Avoid a Learning Curve in Stapedotomy: A Standardized Surgical Technique
Pingling Kwok1, Otto Gleich, Katharina Dalles
1*ENT-Department, University Regensburg, Germany †ENT-Department, Sørlandet Sykehus, Kristiansand, Norway.
Summary
Beginner stapedotomy outcomes are comparable to experienced surgeons when using a thermal memory-shape prosthesis and laser technique. This approach may eliminate the learning curve in stapes surgery, improving patient results.
Area of Science:
- Otolaryngology
- Surgical Innovation
- Audiology
Background:
- Stapedotomy is a common surgical procedure for hearing restoration.
- A learning curve for novice surgeons in stapedotomy can impact patient outcomes.
- Novel prostheses and techniques aim to standardize surgical procedures and improve results.
Purpose of the Study:
- To evaluate if a thermal memory-shape prosthesis combined with a standardized laser-assisted technique can eliminate the learning curve for beginner stapedotomy surgeons.
- To compare the surgical outcomes of beginner surgeons using this technique with those of experienced surgeons.
Main Methods:
- Retrospective case review of 58 ears operated by experienced surgeons and 12 ears by a beginner surgeon.
- Stapedotomy performed using a laser-assisted technique and a thermal memory-shape prosthesis.
- Pure-tone audiometry thresholds were measured pre- and post-surgery to assess hearing gain.
Main Results:
- No significant difference in postoperative hearing gain was observed between experienced and inexperienced surgeons across various frequencies (p > 0.281).
- Average air conduction gain was 20-25 dB below 2 kHz, decreasing at higher frequencies.
- Analysis did not support a learning effect with improved outcomes for successively treated patients.
Conclusions:
- A standardized laser-assisted stapedotomy using a thermal memory-shape prosthesis can potentially bypass the learning curve for novice surgeons.
- This technique offers a promising avenue for consistent and effective stapes surgery outcomes, regardless of surgeon experience.

