En Hamac tympanoplasty and canalplasty for optimal type 1 tympanoplasty outcomes

Multiple tympanoplasty techniques have been developed with numerous differences in grafting and approach. This study aimed to improve type 1 tympanoplasty outcomes by using the 'en hamac' technique as well as performing a complete canalplasty for anterior perforations.

A retrospective review was performed using the prospective Otology-Neurotology Database tool for otological surgery. All primary type 1 tympanoplasty cases performed for tympanic membrane perforations from 2010 to 2016 were selected for analysis, all performed by one author. Minimal clinical and audiometric follow up was 18 months.

Tympanic membrane perforation closure was achieved in 62 of the patients (96.88 per cent). None of the en hamac cases had residual or recurrent perforation (p = 0.02). The mean remaining air-bone gap was 8.50 dB. The remaining air-bone gap was less than 10 dB in 72.55 per cent, 10-20 dB in 25.49 per cent and more than 20 dB in 1.96 per cent.

Using the en hamac technique for anterior perforations as well as systematically performing a complete canalplasty provides multiple surgical advantages with excellent post-operative results.