A comparative study of permeatal transperforation butterfly myringoplasty vs. permeatal transperforation underlay myringoplasty

Introduction:

Myringoplasty is a surgical procedure used to close perforations of the tympanic membrane, so hearing loss can be improved. The aim of this study is to compare between two different methods of myringoplasty, the permeatal transperforation butterfly technique and the permeatal transperforation underlay technique in cases of inactive mucosal chronic suppurative otitis media.

Methods:

This is a prospective study of 1 year (from August 2016 to August 2017) duration conducted in department of otorhinolaryngology, Cairo University. Data was collected from 50 patients admitted for myringoplasty, 25 in each group. Group 1 underwent permeatal transperforation tragal cartilage underlay myringoplasty, while group 2 underwent permeatal transperforation tragal cartilage butterfly myringoplasty. Results were calculated in terms of graft take rate and improvement of hearing after 6 months postoperatively.

Results:

A total of 50 patients are included in the study, out of which 21 were males and 29 were females with male to female ratio of 0.72:1. The success rate of graft take up by the underlay technique is 96% and by the butterfly technique is 76%. In the underlay technique the preoperative mean PTA was 36.92 dB and the postoperative mean PTA after 6 months is 25.87 dB with a mean difference in the PTA (dB) was 11.05 with t value of 7.74. In case of butterfly technique the preoperative mean PTA was 38.24 dB and the 6-months-postoperative mean PTA was 30.28 dB with a mean difference in PTA (dB) was 7.96 with t value of 14.39.

Conclusion:

The study showed that the permeatal transperforation tragal cartilage underlay myringoplasty is superior in graft take rate and postoperative hearing improvement when compared to permeatal transperforation butterfly myringoplasty.

Publication History

Publication Date:
18 April 2018 (online)