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Acta clinica Croatica, Vol. 61. No. Supplement 4, 2022.

Original scientific paper

https://doi.org/10.20471/acc.2022.61.s4.5

Comparison of Hearing Outcomes After Stapes Surgery Depending on Prosthesis Type: A Retrospective Analysis

Andro Košec orcid id orcid.org/0000-0001-7864-2060 ; University of Zagreb School of Medicine, Zagreb, Croatia; Department of Otorhinolaryngology and Head and Neck Surgery, Sestre milosrdnice University Hospital Center, Zagreb, Croatia
Josipa Živko orcid id orcid.org/0000-0001-7297-5366 ; 3Clinical Hospital Dubrava, Zagreb, Croatia
Stela Marković ; University of Zagreb School of Medicine, Zagreb, Croatia
Iva Kelava ; Department of Otorhinolaryngology and Head and Neck Surgery, Sestre milosrdnice University Hospital Center, Zagreb, Croatia
Jakov Ajduk ; University of Zagreb School of Medicine, Zagreb, Croatia; Department of Otorhinolaryngology and Head and Neck Surgery, Sestre milosrdnice University Hospital Center, Zagreb, Croatia
Mihael Ries orcid id orcid.org/0000-0002-9543-8130 ; University of Zagreb School of Medicine, Zagreb, Croatia; Department of Otorhinolaryngology and Head and Neck Surgery, Sestre milosrdnice University Hospital Center, Zagreb, Croatia

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Abstract

Stapes surgery is generally performed to treat otosclerosis, and there are numerous
surgical techniques and prosthesis materials available. Critical evaluation of postoperative
hearing outcomes is crucial for identification and further improvement of treatment options. This
study is a non-randomized retrospective analysis of hearing threshold levels before and after stapedectomy
or stapedotomy in 365 patients during a twenty-year period. The patients were classified into
three groups depending on the prosthesis and surgery type: stapedectomy with Schuknecht prosthesis
placement and stapedotomy with either Causse or Richard prosthesis. The postoperative air-bone gap
(ABG) was calculated by subtracting the bone conduction pure tone-audiogram (PTA) from the air
conduction PTA. Hearing threshold levels were evaluated preoperatively and postoperatively from
250 Hz to 12 kHz. The results showed air-bone gap reduction <10 dB in 72% patients, 70% of patients,
and 76% of patients using Schucknecht’s prosthesis, Richard prosthesis, and Causse prosthesis,
respectively. The results did not differ significantly between three prothesis types. Choice of prosthesis
should be made individually for each patient, but surgeon competency is still the most important
outcome variable, regardless of prosthesis type.

Keywords

Surgery; Stapedectomy; Stapedotomy; Prosthesis; Outcome; Hearing

Hrčak ID:

292361

URI

https://hrcak.srce.hr/292361

Publication date:

31.10.2022.

Article data in other languages: croatian

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