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    • Keywords


      Middle ear simulation; ossicular replacement prosthesis; finite element modelling.

    • 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.

    • Author Affiliations



      1. Department of Mechanical Engineering, Indian Institute of Science (IISc), Bangalore, India
      2. Department of ENT and Head-Neck Surgery, Yenepoya Medical College Hospital, Mangalore, India
    • Dates

  • Sadhana | News

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