Abstract
BackgroundThis study aims at comparing the pure tone audiogram and tympanogram results of a measured thickness (1 mm) conchal cartilage graft material (1.0-mm CC) with full-thickness conchal cartilage (FTCC) used for inactive chronic suppurative otitis media (CSOM) mucosal disease with moderate size perforation.ResultsA total of 40 successful cartilage tympanoplasty procedures were included in the prospective quasi-randomised study. Patients aged between 15 and 55 years with inactive CSOM—moderate size perforation in the tympanic membrane were included. The patients were assessed at the end of 12 weeks with a pure tone audiogram and a tympanogram. The results were compared to know the compliance of the tympanic membrane (TM) between the two groups and the difference in audiometric gain (air-bone gap closure). The air-bone gap gain was better in the 1.0-mm CC group of patients (12) compared to the FTCC group of patients (7). The difference was statistically significant (p = 0.04). The 1.0-mm CC group of patients showed better compliance (0.43) compared to FTCC group of patients (0.73). The air volume and compliance were significantly better in the 1-mm CC group compared to the FTCC group (p = 0.031 and 0.01 respectively).ConclusionThe use of sliced cartilage seems to have a better role in reconstructing the TM when compared to full-thickness cartilage as graft material. It is indeed beneficial to have a compliant TM. Though the results cannot be compared with temporalis fascia grafts, the use of 1.0-mm CC has its advantage in producing an audio logically acceptable outcome in tympanoplasty surgery.
Highlights
This study aims at comparing the pure tone audiogram and tympanogram results of a measured thickness (1 mm) conchal cartilage graft material (1.0-mm 1.0-mm conchal cartilage (CC)) with full-thickness conchal cartilage (FTCC) used for inactive chronic suppurative otitis media (CSOM) mucosal disease with moderate size perforation
Twenty ears with successful tympanoplasty using sliced cartilage of 1 mm thickness were enrolled in one group, and 20 ears enrolled in the other group underwent successful fullthickness cartilage tympanoplasty
Twenty ears were operated with sliced conchal cartilage (1-mm CC) and 20 ears underwent tympanoplasty with full thickness conchal cartilage (FTCC)
Summary
This study aims at comparing the pure tone audiogram and tympanogram results of a measured thickness (1 mm) conchal cartilage graft material (1.0-mm CC) with full-thickness conchal cartilage (FTCC) used for inactive chronic suppurative otitis media (CSOM) mucosal disease with moderate size perforation. The primary objective of doing a tympanoplasty is to reconstruct the diseased tympanic membrane with central perforation in chronic suppurative otitis media (CSOM). The thickness of the conchal cartilage differs from the site of harvesting [1, 2]. It is documented in certain studies that the use of full-thickness cartilage reduces the compliance of the tympanic membrane (TM) [3, 4]. We conducted this study comparing the hearing results and compliance of the tympanic membrane between the sliced conchal cartilage (1.0-mm CC) and full-thickness conchal cartilage (FTCC) used in successful tympanoplasty procedures. The aim of the study is to know the difference in compliance and assess the audio logic gain between the two groups
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