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

Autor: Rahul Gupta, R. G. Aiyer, Rahulkumar Shah
Rok vydání: 2020
Předmět:
Zdroj: Indian J Otolaryngol Head Neck Surg
ISSN: 0973-7707
2231-3796
DOI: 10.1007/s12070-020-02017-2
Popis: 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.
Databáze: OpenAIRE
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