The clinical results of three types of the reconstruction of the open mastoidectomy
中耳根治術症例に対する外耳道後壁再建術の検討

Atsushi Haruta, Hirokazu Kawano, Keiji Matsuda, Tetsuya Tono, Shizuo Komune
2000 Otology Japan  
Sixty three cases of radically mastoidectomized ear with persistent ear discharge and hearing impairment were treated with three types of reconstruction methods of canalplasty, single cortical bone grafting (38 cases), mastoid obliteration with bone chips (10 cases) and T-shape assembled cortical bone grafting (10 cases). Clinical results in our department were summarized from 1987 to 1997. Ear discharge was arrested in 87%. Hearing impairment was improved in 60%. No apparent difference of
more » ... difference of clinical results was found among three reconstruction methods. However, long-term observation revealed an apparent difference in three methods. 56% cases developed re-retraction following single cortical bone grafting. On the other hand, only 30% cases of re-retraction of posterior wall were found following mastoid obliteration with bone chips and T-shape assembled cortical bone grafting. Our results indicated that mastoid obliteration with bone chips and T-shape assembled cortical bone grafting were better to prevent re-retraction of posterior wall of the external ear canal than single cortical bone grafting.
doi:10.11289/otoljpn1991.10.578 fatcat:zkmmpypkxvf7pfkw4oowwq5y3u