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Updated: Oct 15, 2025
Endoscopic Cholesteatoma Surgery
Published on: January 19, 2022
Mastoid obliteration and external auditory canal reconstruction with silicone block in canal wall down mastoidectomy
Mohammad Faramarzi1,2, Reza Kaboodkhani1,2, Ali Faramarzi2,3
1Department of Otorhinolaryngology - Head & Neck surgery Shiraz University of Medical Sciences Shiraz Iran.
Objective:
To prevent cavity problems in canal wall down mastoidectomy, silicone block for mastoid obliteration was used.
Methods:
In this retrospective cohort study, 39 patients (21 males and 18 females) underwent canal wall down mastoidectomy and mastoid obliteration using silicone block. We evaluated the postoperative outcome, the time until epithelialization of the cavity, graft success rate, and the hearing outcome.
Results:
The time until complete epithelialization of the mastoid cavity was 35.5 ± 5.4 days. We had a graft success rate of 100% during the follow-ups. The postoperative evaluation revealed 36 dry ears (92.3%) patients without any cavity problems. However, one ear developed granulation tissue, and two ears had partially exposed silicone block, which required revision mastoidectomy. Regarding hearing outcomes, a complication such as deaf ear was not reported.
Conclusion:
Silicone block is safe and suitable for mastoid obliteration and external auditory canal reconstruction in canal wall down mastoidectomy.
Level Of Evidence:
4.
