title: [Functional long-term results after open cholesteatoma surgery and ossiculoplasty with allogenic ossicles in adulthood].
abstract: BACKGROUND
  Characteristic features of cholesteatoma of the middle ear are destruction of the bone and a high tendency for recurrent disease. The choice of surgical procedure is determined by audiological results and the rate of recurrent cholesteatoma.
  
  
  METHODS
  One hundred fifty patients who underwent primary cholesteatoma surgery were investigated 3-5 years postoperatively. Preoperative and postoperative audiological results and rate of revision surgery were compared for the respective surgical procedures. All cholesteatomas were treated with an open surgical technique. The lateral attic walls and cholesteatomas were removed.
  
  
  RESULTS
  Cholesteotoma recurred in 15 patients (10%). Primary reconstruction of the ossicular chain with a tympanoplasty (type III) was performed in 98 patients in the first operation. Approximately 80% of patients treated with a type III tympanoplasty had a maximum postoperative air-bone gap of 20 dB in the main speech range, depending on the frequency. In about 50% of patients, this value was 10 dB or less. Comparison of preoperative and postoperative conductive hearing loss between 250 Hz and 8000 Hz revealed an improvement (p < 0.05) of 10 dB (500 Hz, 3000 Hz, 4000 Hz) and 15 dB (250 Hz, 1500 Hz, 2000 Hz, 8000 Hz).
  
  
  CONCLUSIONS
  In our opinion, a second look operation should be performed in cases where a large cholesteatoma cannot be removed with sufficient reliability. This applies especially to a cholesteatoma in the oval window. Here, we suggest second-look surgery after one year.
authors.affiliation: Universitäts-Hals-Nasen-Ohren-Klinik Tübingen.
authors.forename: M M
authors.initials: MM
authors.lastname: Maassen
authors.forename: P K
authors.initials: PK
authors.lastname: Plinkert
authors.forename: H
authors.initials: H
authors.lastname: Diedrichs
authors.forename: R
authors.initials: R
authors.lastname: Lüdtke
authors.forename: H P
authors.initials: HP
authors.lastname: Zenner
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D018424:Cholesteatoma, Middle Ear / Q000175:diagnosis / Q000601:surgery*; D005260:Female; D005500:Follow-Up Studies; D006314:Hearing Loss, Conductive / Q000175:diagnosis / Q000601:surgery; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D019933:Ossicular Replacement / Q000379:methods*; D010046:Oval Window, Ear / Q000601:surgery; D011183:Postoperative Complications / Q000175:diagnosis / Q000601:surgery*; D011475:Prosthesis Failure; D012008:Recurrence; D012086:Reoperation