title: The impact of fixated glass ionomer cement and springy cortical bone incudostapedial joint reconstruction on hearing results.
abstract: CONCLUSIONS
  Although it abolishes the incudostapedial joint, use of glass ionomer cement to repair the defect between the stapes head and the long process of the incus is a successful procedure when the hearing results are considered.
  
  
  OBJECTIVE
  To compare the hearing results obtained by a fixed, stiff reconstruction with glass ionomer cement, and a flexible, springy pseudo-joint built with autologous cortical bone in patients with a small defect between the long process of the incus and the stapes head.
  
  
  METHODS
  A total of 66 patients who had canal wall up tympanomastoidectomy due to chronic otitis media and incus long process defect between January 1996 and February 2008 were analyzed retrospectively. Their incudostapedial joints were reconstructed using either glass ionomer cement (n=31) or autologous cortical bone (n=35).
  
  
  RESULTS
  The mean follow-up period was 22.8 months for all cases. The mean postoperative air bone gap (ABG) was 29.2 dB and it reduced to 11.8 dB at the end of the follow-up period. Preoperative and postoperative ABGs were 27.4 dB and 10.6 dB in the glass ionomer cement group and 30.9 dB and 12.8 dB in the cortical bone group, respectively. The ABG closure was 16.8 dB in the glass ionomer cement group and 18 dB in the cortical bone group.
authors.affiliation: Department of Otorhinolaryngology and Head and Neck Surgery, Ministry of Health Ankara Training and Research Hospital, Ankara University School of Medicine, Ankara, Turkey.
authors.forename: Hatice
authors.initials: H
authors.lastname: Celik
authors.forename: Sevim
authors.initials: S
authors.lastname: Aslan Felek
authors.forename: Ahmet
authors.initials: A
authors.lastname: Islam
authors.forename: Munir
authors.initials: M
authors.lastname: Demirci
authors.forename: Erdal
authors.initials: E
authors.lastname: Samim
authors.forename: Derya
authors.initials: D
authors.lastname: Oztuna
mesh_terms: D000293:Adolescent; D000328:Adult; D001178:Arthroplasty / Q000379:methods*; D001301:Audiometry, Pure-Tone; D016025:Bone Transplantation; D002648:Child; D004429:Ear Ossicles / Q000601:surgery*; D005260:Female; D005899:Glass Ionomer Cements / Q000627:therapeutic use*; D006309:Hearing; D006801:Humans; D008297:Male; D008875:Middle Aged; D013506:Otologic Surgical Procedures; D012189:Retrospective Studies; D016896:Treatment Outcome; D055815:Young Adult
chemical_list: D005899:Glass Ionomer Cements