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- Title
Incus footplate assembly: Indication and surgical outcome.
- Authors
Park, Mina; Han, Sungjun; Choi, Byung Yoon; Chang, Sun O; Kim, Chong Sun; Koo, Ja‐Won
- Abstract
<bold>Objectives/hypothesis: </bold>To review surgical findings and hearing outcomes of incus footplate assembly (IFA) for the patients with conductive hearing loss due to missing stapes superstructure with a mobile stapes footplate.<bold>Study Design: </bold>Retrospective case review and survey.<bold>Methods: </bold>Pre- and postoperative audiometric data and intraoperative findings were reviewed. Postoperative air-bone gap (ABG) and ABG closure (postoperative air-conduction threshold-preoperative bone-conduction threshold) were analyzed.<bold>Results: </bold>The causes of missing stapes superstructure and conductive hearing loss were congenital ossicular anomaly (n = 5), chronic otitis media (n = 2), and congenital cholesteatoma (n = 1). The prosthesis was designed to fit between the medial side of the incus and stapes footplate and had a mean length of 3.6 ± 0.5 mm. The mean pre- and postoperative ABG were 38.3 ± 4.8 and 13.3 ± 10.0 dB, respectively. The postoperative ABG at frequencies of 0.25, 0.5, 1.0, 2.0, 3.0, and 4.0 kHz were 20.0 ± 15.4, 16.9 ± 11.9, 16.3 ± 10.3, 10.6 ± 7.3, 12.9 ± 14.0, and 23.1 ± 16.2 dB, respectively. The mean ABG closure was 9.5 dB (range, -1.3∼35.8 dB). Seven cases obtained the best results (mean ABG closure ≤10 dB). In the remaining patient, the mean ABG closure was 9.5 dB until 6 months after surgery, but was 35.8 dB 1 year after surgery.<bold>Conclusions: </bold>IFA seems to be a reasonable surgical option in patients with missing the stapes superstructure, but with a mobile footplate in which the long process of incus is preserved.<bold>Level Of Evidence: </bold>4 Laryngoscope, 126:2569-2573, 2016.
- Subjects
CONDUCTIVE hearing loss; CHOLESTEATOMA; EAR surgery; BONE conduction audiometry; TREATMENT effectiveness; DIAGNOSIS; THERAPEUTICS
- Publication
Laryngoscope, 2016, Vol 126, Issue 11, p2569
- ISSN
0023-852X
- Publication type
journal article
- DOI
10.1002/lary.25908