title: [A clinical study of traumatic tympanic membrane perforation].
abstract: We reviewed 165 cases of traumatic tympanic membrane perforation treated in the last 9 years (2000-2008). Of these, 103 sustained direct injury and 62 indirect injury. Ear picking accounted for 90.3% of direct injuries. Perforation size followed the classification of Yoshikawa, with Grade I perforation the most common, according for 129 (78.2%). The anteroinferior quadrant perforation site was the most common, with 98 (59.4%). Of the 165, 66 were lost during followup. Of the remaining 99, perforations closed spontaneously in 85 (85.9%), within a mean 25.9 days. Tympanoplasty was done in 14, in whom postoperative hearing improved in 12. The remaining 2 had ossicular fractures associated with perilymph fistula. In the 14 undergoing surgery, tympanic membrane perforation relapsed in 4 and 2 developed cholesteatoma as tympanoplasty sequelae.
authors.affiliation: Department of Otorhinolaryngology, Iwate Medical University, Morioka.
authors.forename: Kazuharu
authors.initials: K
authors.lastname: Yamazaki
authors.forename: Ken
authors.initials: K
authors.lastname: Ishijima
authors.forename: Hiroaki
authors.initials: H
authors.lastname: Sato
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D008297:Male; D014432:Tympanic Membrane / Q000293:injuries*; D018058:Tympanic Membrane Perforation / Q000503:physiopathology / Q000601:surgery