A Comparative Analysis of Hearing in Cartilage Ossiculoplasty and Partial Ossicular Replacement Prosthesis Ossiculoplasty

Vineetha, K (2019) A Comparative Analysis of Hearing in Cartilage Ossiculoplasty and Partial Ossicular Replacement Prosthesis Ossiculoplasty. Masters thesis, Coimbatore Medical College, Coimbatore.


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INTRODUCTION: Chronic suppurative otitis media is a common cause of conductive hearing loss in developing countries. Deafness is due to tympanic membrane perforation and also ossicular erosion. Incudostapedial joint is most commonly eroded region. Ossiculoplasty material should be ideally biocompatible, stable, safe, affordable and easily available. In this study we compared autograft conchal cartilage with PORP. OBJECTIVE: To assess hearing outcome following autologous cartilage ossiculoplasty and PORP ossiculoplasty in patients with chronic otitis media, tubotympanic type with incus bone erosion alone. In this study, we compared pure tone average and air bone gap before and after surgeries and analysed the outcome. MATERIALS AND METHODS: This is a prospective cohort study of ossicular reconstructions done at ENT Department, Coimbatore Medical College. 40 patients between the age 15-50 years, who diagnosed with CSOM with ossicular erosion and met the inclusion criterias were randomly assigned into two groups.20 patients underwent cartilage ossiculoplasty and PORP ossiculoplasty done in other half. PTA done pre operatively and post operatively at the end of 3rd and 12th month and compared. RESULTS: The mean pre operative PTA of patients underwent cartilage ossiculoplasty found to be 43.9 ,reduced to 39 following surgery. Whereas preoperative mean PTA was 47.91 in PORP ossiculoplasty group, which improved to 37.26 following surgery. There was a hearing gain of 10.65dB following PORP ossiculoplasty. On an average, mean air bone gap reduction is about 5dB in cases underwent cartilage ossiculoplasty whereas 10.93dB for PORP, giving a p value of 0.01, making the result significant. CONCLUSION: With the available evidence, this simple prosthesis, PORP found to significantly improve hearing results when compared to cartilage ossiculoplasty.

Item Type: Thesis (Masters)
Uncontrolled Keywords: Cartilage ossiculoplasty, Chronic otitis media, Incus bone erosion, PORP ossiculoplasty, Pure tone average.
Subjects: MEDICAL > Otolaryngology
Depositing User: Subramani R
Date Deposited: 31 Aug 2019 23:57
Last Modified: 01 Sep 2019 01:32
URI: http://repository-tnmgrmu.ac.in/id/eprint/11326

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