title: Iatrogenic incudostapedial joint dislocation in transcanal tympanoplasty.
abstract: OBJECTIVE
  To report the result of transcanal tympanoplasty using Lyodura as a graft.
  
  
  METHODS
  One hundred thirty-seven patients with chronic suppurative otitis media with a dry perforation were considered for tympanoplasty. The transcanal permeatal approach was adopted. Lyodura as a ready-made graft was used.
  
  
  RESULTS
  The success rate of the graft was 78%. Latrogenic incudostapedial joint dislocation was found in six patients (4.4%), and sensorineural hearing loss occurred in nine patients (6.5%).
  
  
  CONCLUSIONS
  The use of thick dura as a graft for repair of the tympanic membrane may result in damage to the ossicular chain or dislocation of the incudostapedial joint when used as underlay. Excessive manipulation of the ossicles or drilling should be avoided.
authors.affiliation: Department of Otorhinolaryngology, King Abdul Aziz University Hospital, Riyadh, Saudi Arabia.
authors.forename: M S
authors.initials: MS
authors.lastname: Attallah
authors.forename: S M
authors.initials: SM
authors.lastname: Zakzouk
mesh_terms: D000293:Adolescent; D000328:Adult; D004424:Ear Canal / Q000601:surgery*; D004429:Ear Ossicles / Q000293:injuries*; D005260:Female; D006801:Humans; D007049:Iatrogenic Disease; D007431:Intraoperative Complications / Q000175:diagnosis*; D004204:Joint Dislocations / Q000175:diagnosis*; D007596:Joints; D008297:Male; D008875:Middle Aged; D014433:Tympanoplasty / Q000379:methods*