Design of a S-shape middle-ear ossicular replacement prosthesis and its comparison with present-day prostheses using finite element modelling

Seivur, S and Rathnakara, SH and Ananthasuresh, GK (2022) Design of a S-shape middle-ear ossicular replacement prosthesis and its comparison with present-day prostheses using finite element modelling. In: Sadhana - Academy Proceedings in Engineering Sciences, 47 (4).

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Abstract

The impedance-matching mechanism of the ossicular chain of the middle ear is disrupted by erosion of the incus, warranting prosthetic intervention. The present-day practice of straight rigid-rod is not competent to restore the required level of natural motion attenuation and force amplification between the tympanic membrane and stapes-footplate. In this work, we use finite element simulation of anatomically accurate middle ear to evaluate the efficacy. We compare the performance of differently shaped incus-prosthesis, T, C, and S in particular, using simulation. We find that the S-shaped incus-prosthesis gives the best performance. We also prototyped the prosthesis and performed a preliminary cadaveric study. The finite element simulation combined with the ability to 3D-print has the potential for effective personalized surgical intervention.

Item Type:	Journal Article
Publication:	Sadhana - Academy Proceedings in Engineering Sciences
Publisher:	Springer
Additional Information:	The copyright for this article belongs to Springer
Keywords:	3D printers; Finite element method, Element models; Finite element modeling; Finite elements simulation; Impedance matchings; Matching mechanisms; Middle ear simulation; Middle ears; Ossicular replacement prosthesis; Performance; S shape, Prosthetics
Department/Centre:	Division of Mechanical Sciences > Mechanical Engineering
Date Deposited:	29 Dec 2022 11:26
Last Modified:	29 Dec 2022 11:26
URI:	https://eprints.iisc.ac.in/id/eprint/78632

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