Carrillo-Soto IA, Flores-García ML, Hernández-Palestina MS, Mena-Ayala JC

Language: Spanish
References: 17
Page: 248-253
PDF size: 379.24 Kb.

ABSTRACT

Background: Otosclerosis is a disorder of bone remodeling that affects the homeostasis of the otic capsule causing progressive conductive and sensorinerual hearing loss; surgery is the treatment of choice when there is conductive hearing loss with a bone-air gap › 20dB. Advances in the fixation of prostheses to the long arm of the incus with different materials and forms of closure to fix them may be a factor that affects the postsurgical audiological result.
Objective: To learn about the postoperative hearing gain, comparing the use of two prostheses.
Material and method: A retrospective and comparative study of the hearing outcomes of patients undergoing primary stapes surgery using Schuknecht versus nitinol prosthesis after three months of the surgery. We analyzed the pre and postsurgical audiometries, as well as the surgical reports, determining the postsurgical hearing gain with the two types of prostheses.
Results: A total of 26 patients were included; 29 ears that underwent primary stapes surgery were evaluated; 16 of the 29 ears had nickel titanium prosthesis and 13 had Schuknecht prosthesis. The patients with nickel titanium prosthesis had a successful hearing outcome in 75%; for the Schuknecht prosthesis 77% had successful outcomes.
Conclusion: There is no statistical significance in the hearing results with both prostheses in median term; however, it is necessary to assess long-term evolution.

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