抄録
Myringoplasty by the under-lay method was performed in 74 ears with the perforation of the tympanic membrane in our hospital from 1997 to 2002. Three had traumatic perforations, 11 had residual perforations after insertion of tympanic drain and/or myringotomy, and 60 had simple chronic otitis media among the treated ears. The postoperative closure rate was 96.9% in Grade I perforation, 90.6% in Grade II perforation, 75.0% in Grade III perforation, and only one ear with Grade IV perforation was closed after myringoplasty. We succeeded in hearing gain at a rate of 73.0% in 74 ears.
