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To evaluate the influence of a cholesteatoma growth on the hearing function, a computational middle ear model based on the finite element method was used and three different size of cholesteatoma were modeled. The cholesteatoma solidification and the consequent degradation of the ossicles were also simulated as two condition that commonly occurs during cholesteatoma evolution. A sound pressure level of 80\u2009dB SPL was applied in the tympanic membrane and a steady state analysis was performed for frequencies from 100\u2009Hz to 10\u2009kHz. The displacements of both the tympanic membrane and the stapes footplate were measured. The results were compared with a healthy case and it was shown that the cholesteatoma development leads to a decrease in the umbo and stapes displacements. The ossicles degradation simulation showed the higher difference comparing with the cholesteatoma in an initial stage, with lower displacements in the stapes footplate mainly for high frequencies. The observed displacement differences are directly connected to hearing loss, being possible to conclude that cholesteatoma evolution in the middle ear will lead to hearing problems, mainly in an advanced stage. <\/jats:p>","DOI":"10.1177\/09544119211046675","type":"journal-article","created":{"date-parts":[[2021,9,21]],"date-time":"2021-09-21T15:16:18Z","timestamp":1632237378000},"page":"72-83","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":0,"title":["On the hearing effects of a cholesteatoma growing: A biomechanical study"],"prefix":"10.1177","volume":"236","author":[{"given":"Leonor","family":"Mendon\u00e7a","sequence":"first","affiliation":[{"name":"INEGI, Institute of Mechanical Engineering and Industrial Management, Rua Dr. Roberto Frias, Porto, Portugal"},{"name":"Faculty of Engineering of the University of Porto, Rua Dr. Roberto Frias, Porto, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0304-1356","authenticated-orcid":false,"given":"Carla F","family":"Santos","sequence":"additional","affiliation":[{"name":"INEGI, Institute of Mechanical Engineering and Industrial Management, Rua Dr. Roberto Frias, Porto, Portugal"},{"name":"Faculty of Engineering of the University of Porto, Rua Dr. Roberto Frias, Porto, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6521-3475","authenticated-orcid":false,"given":"Fernanda","family":"Gentil","sequence":"additional","affiliation":[{"name":"INEGI, Institute of Mechanical Engineering and Industrial Management, Rua Dr. Roberto Frias, Porto, Portugal"},{"name":"Cl\u00ednica ORL-Dr. Eurico Almeida, Widex, Escola Superior de Sa\u00fade \u2013 I.P. 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