title: Partial mastoid obliteration combined with soft-wall reconstruction for middle ear cholesteatoma.
abstract: OBJECTIVE
  The objective was to analyze the surgical outcomes of tympanoplasty with partial mastoid obliteration and soft-wall reconstruction for middle ear cholesteatoma.
  
  
  METHODS
  Sixty-nine patients (73 ears) with fresh middle ear cholesteatomas, 42 men and 27 women aged 6 to 89 years, were retrospectively analyzed. The cholesteatomas were the pars flaccida and tensa types in 59 and 12 ears, respectively. The patients underwent canal-wall-down tympanoplasty with partial mastoid obliteration and soft-wall reconstruction. Follow-up computed tomography was performed 6 to 12 months after surgery. Hearing outcomes were evaluated by the arithmetic mean of the hearing levels at 500, 1000, and 2000 Hz.
  
  
  RESULTS
  Residual cholesteatoma occurred in 7 ears (9.6%) and recurrent cholesteatoma in 1 ear (1.4%). No cavity problem was seen. Primary evaluation of postoperative hearing was performed 6 to 12 months after ossiculoplasy. Of the 50 ears with available audiogram in this period, the postoperative air-bone gaps were ≤ 15 dB and ≤ 20 dB in 27 (54.0%) and 37 (74.0%) ears, respectively. The postoperative hearing level was within 30 dB in 22 ears (44.0%). The hearing gain was ≥ 15 dB in 24 ears (48.0%).
  
  
  CONCLUSIONS
  The surgical outcomes of tympanoplasty with partial mastoid obliteration and soft-wall reconstruction for middle ear cholesteatoma were satisfactory with a low incidence of cholesteatoma recidivism and tolerable postoperative hearing without cavity problems.
authors.forename: Hideaki
authors.initials: H
authors.lastname: Suzuki
authors.forename: Shoji
authors.initials: S
authors.lastname: Ikezaki
authors.forename: Kei
authors.initials: K
authors.lastname: Imazato
authors.forename: Hiroki
authors.initials: H
authors.lastname: Koizumi
authors.forename: Toyoaki
authors.initials: T
authors.lastname: Ohbuchi
authors.forename: Nobusuke
authors.initials: N
authors.lastname: Hohchi
authors.forename: Koichi
authors.initials: K
authors.lastname: Hashida
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001299:Audiometry; D001844:Bone Conduction; D002648:Child; D018424:Cholesteatoma, Middle Ear / Q000601:surgery*; D004424:Ear Canal / Q000601:surgery*; D004432:Ear, Middle / Q000601:surgery*; D005205:Fascia / Q000637:transplantation; D005260:Female; D034381:Hearing Loss / Q000209:etiology / Q000601:surgery; D006801:Humans; D008297:Male; D008416:Mastoid / Q000601:surgery*; D008875:Middle Aged; D012008:Recurrence; D012189:Retrospective Studies; D014432:Tympanic Membrane / Q000601:surgery; D014433:Tympanoplasty; D055815:Young Adult