Mastoid obliteration with S53P4 bioactive glass after canal wall down mastoidectomy: Preliminary results

https://doi.org/10.1016/j.amjoto.2020.102895Get rights and content
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Highlights

  • The study confirmed the antibacterial effect of bioactive glass.

  • Due to the relatively high incidence of complications during the initial healing period, topical drops with cephalosporin antibiotics and an antifungal drug should be considered as soon as the dressing is removed.

Abstract

Background

Bioactive glass (S53P4), abbreviated BG, currently seems to be the best material for reconstructing the posterior wall of the auditory canal and obliterating the postoperative cavity.

Purpose

The aim of the study was to report preliminary results of otosurgery involving obliteration of the mastoid cavity after canal wall down mastoidectomy.

Methods

11 adult patients who had had a history of chronic otitis media with cholesteatoma in one or both ears and previous canal wall down mastoidectomy. The duration of the follow-up was 6 months, with routine visits after 7 days, then 1, 3, and 6 months after surgery. The patient's medical history, noting other diseases potentially affecting the healing process, was analyzed. Healing, audiometric results, reduction of the volume of the cavity after surgery, and reduction of bacterial flora growth were assessed.

Results

There was not worsening in the audiological evaluation. Healing period was uneventful. There was a reduction in volume of the postoperative cavity, no development of pathological flora, and no recurrence of cholesteatoma.

Conclusion

Obliteration of the mastoid process with S53P4 bioactive glass is a safe and effective method of treatment. Such a procedure should be considered as a treatment for patients after canal wall down surgery (CWD).

Keywords

S53P4 bioactive glass
Cholesteatoma
Canal wall down mastoidectomy
Mastoid obliteration
Otosurgery

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