Fatigue analysis of tympanic membrane after ossiculoplasty. (3rd July 2017)

• Record Type: Journal Article
• Authors: Zhou, Lei; Feng, Miaolin; Huang, Xinsheng; Duan, Maoli
• Is Part Of: Acta oto-laryngologica. Volume 137:Number 7(2017)
• Page Start: 679
• Page End: 685
• Publication Date: 2017-07-03
• Subjects: Ossiculoplasty -- fatigue -- finite element analysis -- stress; Otolaryngology -- Periodicals; Ear -- Diseases -- Periodicals; Throat -- Diseases -- Periodicals; Otolaryngology -- Electronic Resources; Otorhinolaryngologic Diseases; 617.8
• DOI: 10.1080/00016489.2016.1277264
• Languages: English
• ISSNs: 0001-6489

Abstract

Abstract: Conclusion: A tentative conclusion was made that the finite element method can be used to investigate the fatigue life of the tympanic membrane after ossiculoplasty; the main reason of the extrusion of the tympanic membrane may not be blamed to the fatigue mechanism under normal sound pressure. Objective: This study was to investigate the extrusion of the prosthesis from the tympanic membrane at post-ossiculoplasty by finite element method. Methods: A finite element model of the human middle ear has been constructed and used as the model of the constructed middle ear at post-ossiculoplasty. Then the fatigue life of the tympanic membrane was calculated under different sound pressure level using this model. Results: The tympanic membrane would not be extruded under normal sound pressure level. The sound pressure level which caused the tympanic membrane to crack in less than 3 years was higher than 145.17 dB (362.5 Pa).