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. 2023 Apr;75(Suppl 1):210-215.
doi: 10.1007/s12070-022-03317-5. Epub 2022 Dec 19.

Considerations on Ossicular Reconstruction Using Lenticular Prosthesis for the Necrosed Lenticular Process During Endoscopic Tympanoplasty in Chronic Otitis Media (Mucosal) Cases

Arvind Varma  1 , Apoorva Kumar Pandey  1 , Chetan Bansal  2
Affiliations

Considerations on Ossicular Reconstruction Using Lenticular Prosthesis for the Necrosed Lenticular Process During Endoscopic Tympanoplasty in Chronic Otitis Media (Mucosal) Cases

Arvind Varma et al. Indian J Otolaryngol Head Neck Surg. 2023 Apr.

Abstract

Purpose: To evaluate hearing outcome and fate of LPIRP (lenticular process of incus replacement prosthesis) prosthesis in the reconstruction of erosion of long process of the incus. Methods: In this retrospective descriptive study 17 patients with erosion of long process of incus who were operated (reconstructed with LPIRP prosthesis) between January 2015 to December 2017 in a tertiary care center were included. The hearing outcome was evaluated by comparing mean PTA and mean ABG preoperatively and postoperatively at the end of 3 months and 18 months. The graft uptake rate, reperforation, and extrusion of the prosthesis were assessed using otoendoscopy. Results: Preoperative mean PTA was 53.8 dB while mean postoperative PTA was 36.6 dB and 33.4 dB at the end of 3 and 18 months respectively (p-value ˂ 0.05). The mean preoperative ABG was 30.2 dB while the postoperative mean was 13.4 dB and 11.2 dB at the end of 3 months and 18 months respectively (p < 0.05). Extrusion with re-perforation was seen only in one case 1/17 (5.8%). Conclusion: LPIRP has all the characteristics for an ideal middle ear implant which is a cost-effective alternative in the reconstruction of an eroded long process of the incus.

Supplementary information: The online version contains supplementary material available at 10.1007/s12070-022-03317-5.

Keywords: Erosion of long process of incus; Hearing outcome; Lenticular process of incus replacement prosthesis (LPIRP).

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Conflict of interest statement

Conflict of Interest/Competing InterestsAll authors declare no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.

Figures

Fig. 1
Fig. 1
The design of LPIRP prosthesis
Fig. 2
Fig. 2
Defect of Incus long process where LPIRP was used
Fig. 3
Fig. 3
Defect closed by LPIRP prosthesis
See this image and copyright information in PMC

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