Application of modified transmastoid approach methods to congenital atresia of the external ear canal with middle ear infection.
OBJECTIVE
To present our surgical technique for congenital atresia of the external ear canal with middle ear infection.


METHODS
A modified transmastoid approach to congenital atresia of the external ear canal with middle ear infection was applied. Our method is to visualize the landmarks of the mastoid cavity such as the antrum, sinodural angle and digastric ridge by the canal-open method to avoid facial nerve injury and then prepare a relatively large external ear canal with reconstruction of the posterior wall of the external ear canal.


CONCLUSIONS
This method is suitable not only for treating congenital atresia of the external ear canal with middle ear infection, but also for avoiding facial nerve injury and postoperative complications such as re-stenosis of the new ear canal and postoperative middle ear infection.
Yamane
Hideo
H
Department of Otolaryngology and Head & Neck Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan. ent-yamane@med.osaka-cu.ac.jp
Sunami
Kishiko
K
Takayama
Masahiro
M
Tochino
Rie
R
Konishi
Kazuo
K
Iguchi
Hiroyoshi
H
Sakashita
Testushi
T
Kusuki
Makoto
M
D000328:Adult; D001301:Audiometry, Pure-Tone; D001309:Auditory Threshold; D002648:Child; D004424:Ear Canal / Q000002:abnormalities* / Q000601:surgery*; D020220:Facial Nerve Injuries / Q000517:prevention & control; D005260:Female; D006314:Hearing Loss, Conductive / Q000628:therapy; D006801:Humans; D008297:Male; D008416:Mastoid / Q000601:surgery*; D010033:Otitis Media / Q000601:surgery*; D013506:Otologic Surgical Procedures / Q000379:methods*; D014057:Tomography, X-Ray Computed; D014433:Tympanoplasty / Q000379:methods