ArticleJournal of otology2026
Bone conduction threshold improvement after otosclerosis surgery.
Article in Journal of otology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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7 authors.
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Abstract
Objective: To analyze the characteristics of bone conduction (BC) threshold changes after stapedotomy in patients with otosclerosis, and to explore the clinical significance and implications for the evaluation of surgical outcomes. Methods: It is a retrospective, single-center study. A total of 97 ears from patients with otosclerosis who underwent endoscopic stapedotomy (footplate fenestration with titanium piston implantation) between November 2015 and February 2025 were included. Pure tone audiometry (PTA) was performed preoperatively, and at 1 month and 6 months postoperatively. Air conduction (AC) thresholds were tested at 125-8000 Hz, and bone conduction (BC) thresholds at 250-4000 Hz. Pre- and postoperative changes in BC thresholds, AC thresholds, and air-bone gap (ABG) were documented, and the results were compared with findings from other studies. Results: The average postoperative BC threshold across 250-4000 Hz showed significant improvement, with a mean gain of 7.5 dB ( Conclusion: Stapedotomy not only effectively restores AC hearing but also significantly improves BC thresholds. This improvement in BC thresholds may be attributed to the restoration of bone conduction mechanisms following stapedotomy. Traditional evaluation methods for surgical outcomes that rely solely on ABG closure tend to underestimate overall surgical efficacy. For clinical implementation, we suggest a multidimensional framework can be applied by simultaneously evaluating postoperative air conduction gain, bone conduction gain, and air‑bone gap closure at each frequency, rather than relying on ABG closure alone.
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