Graft thickness assessment for surgery of retraction pocket of the middle ear based on finiteele ment analysis of eigenfrequencies of the eardrum oscillating system

Authors

  • Gennadi I. Mikhasev Belarusian State University, Niezaliežnasci Avenue, 4, 220030, Minsk, Belarus
  • Sergei M. Bosiakov Belarusian State University, Niezaliežnasci Avenue, 4, 220030, Minsk, Belarus
  • Kirill S. Yurkevich Belarusian State University, Niezaliežnasci Avenue, 4, 220030, Minsk, Belarus
  • Alina A. Dutina Belarusian State University, Niezaliežnasci Avenue, 4, 220030, Minsk, Belarus
  • Lyudmila G. Petrova Belarusian Academy of Postgraduate Education, P. Broŭki Street, 3, bilding 3, 220013, Minsk, Belarus
  • Marina M. Maisyuk Republican Center for Research and Practice in Otolaryngology, Suchaja Street, 8, 220004, Minsk, Belarus

Keywords:

middle ear, tympanic membrane, retraction pocket, cartilage graft, finite-element analysis

Abstract

The aim of this study is to formulate recommendations for surgery of retraction pocket of the tympanic membrane and improving of hearing. Finite-element analysis of the eigenfrequencies of the oscillatory systems for normal middle ear, middle ear with pathology of tympanic membrane and middle ear with cartilage graft are carried out. The finite-element model of the middle ear consists of a tympanic membrane, a malleus, an anvil and a stapes. Pathological changes of the tympanic membrane elastic properties are described by a change of the modulus of elasticity. The geometric dimensions of the cartilage graft of the tympanic membrane are assessed to generate the acoustic conditions corresponding to the hearing functions of the normal tympanic membrane. The obtained results can be employed to estimate the thickness of the cartilage graft for restoring of the middle ear functions by means of reconstruction of the tympanic membrane with a retraction pocket. 

Author Biographies

  • Gennadi I. Mikhasev, Belarusian State University, Niezaliežnasci Avenue, 4, 220030, Minsk, Belarus

    doctor of science (physics and mathematics), full professor; head of the department of bio- and nanomechanics, faculty of mechanics and mathematics

  • Sergei M. Bosiakov, Belarusian State University, Niezaliežnasci Avenue, 4, 220030, Minsk, Belarus

    PhD (physics and mathematics), docent; associate professor at the department of theoretical and applied mechanics, faculty mechanics and mathematics

  • Kirill S. Yurkevich, Belarusian State University, Niezaliežnasci Avenue, 4, 220030, Minsk, Belarus

    PhD (physics and mathematics), docent; associate professor at the department of bio- and nanomechanics, faculty of mechanics and mathematics

  • Alina A. Dutina, Belarusian State University, Niezaliežnasci Avenue, 4, 220030, Minsk, Belarus

    postgraduate student at the department of analytical economics and econometrics, faculty of economics

  • Lyudmila G. Petrova, Belarusian Academy of Postgraduate Education, P. Broŭki Street, 3, bilding 3, 220013, Minsk, Belarus

    doctor of science (physics and mathematics), full professor; head of the department of laryngology diseases

  • Marina M. Maisyuk, Republican Center for Research and Practice in Otolaryngology, Suchaja Street, 8, 220004, Minsk, Belarus

    head of the department of otorhinolaryngology for children

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Published

2018-01-24

Issue

No. 2 (2017): Journal of the Belarusian State University. Mathematics and Informatics

Section

Theoretical and Applied Mechanics

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How to Cite

[1]
Mikhasev, G.I. et al. 2018. Graft thickness assessment for surgery of retraction pocket of the middle ear based on finiteele ment analysis of eigenfrequencies of the eardrum oscillating system. Journal of the Belarusian State University. Mathematics and Informatics. 2 (Jan. 2018), 52–58.