Fatigue analysis of tympanic membrane after ossiculoplasty.

Fatigue analysis of tympanic membrane after ossiculoplasty.

Acta Otolaryngol. 2017 Jan 26;:1-7

Authors: Zhou L, Feng M, Huang X, Duan M

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).

PMID: 28125319 [PubMed - as supplied by publisher]

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