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Comparison of “Lenticular Process of Incus Replacement Prosthesis [LPIRP]” with “Conventional Autologous Tissue Ossiculoplasty Techniques” in Lenticular Process of Incus (LPI) Necrosis

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Abstract

To compare the outcome of ossiculoplasty using ‘lenticular process of incus replacement prosthesis [LPIRP]’ with that of ‘conventional autologous tissue ossiculoplasty techniques’ in patients with lenticular process of incus necrosis [LPI] in terms of: 1. Hearing results. 2. Graft take-up. 3. Complications like extrusion. Total 16 patients found intraoperatively to have LPI necrosis were allocated randomly using (simple random sampling technique) in two groups. Total 8 patients in group A underwent ossicular chain reconstruction using titanium prosthesis-LPIRP (manufactured by Decibel’s gold prosthesis pvt. ltd.) and total 8 patients in group B underwent ossicular chain reconstruction using autologous cartilage/cortical bone. At the end of 4 weeks status of graft uptake was assessed and follow up pure tone audiogram [PTA] was performed at average 4th, 12th and 24th post-operative week. No significant difference in mean hearing gain (i.e. air-bone conduction gap closure) between two groups at 1 month, 3 months and 6 months post operatively [p > 0.05]. However postoperative 3 months and 6 months results have better air bone conduction gap closure in group A as compared to group B. Titanium LPIRP prosthesis can be a good alternative in patients undergoing ossiculoplasty where autografts are not available for ossicular reconstruction or there is inadequate surgical expertise for remodelling autologous bone/cartilage.

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Availability of Data and Material

All data used in study was taken from hospital records of patients operated in Department of E.N.T. Head-Neck Surgery, Baroda Medical College, Sir Sayajirao General Hospital with prior approval from ethics committee.

Abbreviations

LPIRP:

Lenticular process of incus replacement prosthesis

LPI:

Lenticular process of incus

PTA:

Pure tone audiogram

E.N.T.:

Ear nose throat

ABG:

Air bone conduction gap

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Acknowledgements

I am thankful to our beloved Head of Department, Dr. Ranjan G. Aiyer, and Associate Professor Dr. Rahul Gupta, for providing me excellent infrastructure for conducting the study. I am also thankfull to Dr.Nikhil Patel, Dr.Jayman Raval, Dr.Hitesh Gangani and Dr.Anand Palas, for encouraging me to involve in research. We thank our statistician, Dr.Vidhi Parmar, for helping us in statistical analysis of the data.

Funding

There was no source of external funding. All expense of prosthesis used in surgery was done by authors.

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Authors and Affiliations

  1. Department of E.N.T. & Head-Neck Surgery, Baroda Medical College, Vadodara, Gujarat, India

    Rahulkumar Vijaykumar Shah, Rahul Rajivkumar Gupta & Ranjan G. Aiyer

Authors
  1. Rahulkumar Vijaykumar Shah
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  2. Rahul Rajivkumar Gupta
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  3. Ranjan G. Aiyer
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Correspondence to Rahul Rajivkumar Gupta.

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All the authors declare that they have no conflict of interest in the submission of this manuscript.

Ethical Approval

All procedures performed in the study involving human participant were in accordance with the ethical standards of the institutional research committee and ethical standards.

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This article does not contain any studies with animals performed by any of the authors.

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Informed consent was obtained from all individual participants included in the study.

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Shah, R.V., Gupta, R.R. & Aiyer, R.G. Comparison of “Lenticular Process of Incus Replacement Prosthesis [LPIRP]” with “Conventional Autologous Tissue Ossiculoplasty Techniques” in Lenticular Process of Incus (LPI) Necrosis. Indian J Otolaryngol Head Neck Surg 72, 492–496 (2020). https://doi.org/10.1007/s12070-020-02017-2

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  • DOI: https://doi.org/10.1007/s12070-020-02017-2

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