title: Retrospective analysis of outcomes after stapedotomy with implantation of a self-crimping Nitinol stapes prosthesis.
abstract: OBJECTIVE
  To review hearing results after implantation of a self-crimping stapes prosthesis.
  
  
  METHODS
  Analysis of hearing results in patients implanted with a self-crimping stapes prosthesis at two academic hospitals from 2000 to 2004.
  
  
  RESULTS
  Seventy-nine ears were divided into short-term and intermediate follow-up groups. The mean postoperative air-bone gap (ABG), preoperative minus postoperative ABG, and preoperative minus postoperative bone conduction values were 5.7, 21.4, and 4.1 dB, respectively, for the short-term group, and 6.3, 22.3, and 4.7 dB, respectively, for the intermediate group. The ABG was <10 dB in 88 percent of the short-term group and in 79 percent of the intermediate group.
  
  
  CONCLUSIONS
  The self-crimping Nitinol stapes prosthesis provides excellent short-term and intermediate postoperative hearing results, and may overcome the limitations of stapes prostheses requiring manual crimping.
  
  
  CONCLUSIONS
  This paper provides evidence for the use of a self-crimping Nitinol stapes prosthesis, which may simplify hearing restoration surgery for stapes fixation.
authors.affiliation: Department of Otolaryngology-Head and Neck Surgery, Mayo Clinic, Rochester, MN 55905, USA. sorom.abraham@mayo.edu
authors.forename: Abraham J
authors.initials: AJ
authors.lastname: Sorom
authors.forename: Colin L W
authors.initials: CL
authors.lastname: Driscoll
authors.forename: Charles W
authors.initials: CW
authors.lastname: Beatty
authors.forename: Larry
authors.initials: L
authors.lastname: Lundy
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000497:Alloys; D001299:Audiometry; D001844:Bone Conduction / Q000502:physiology; D002648:Child; D003475:Curettage; D005260:Female; D005500:Follow-Up Studies; D006309:Hearing / Q000502:physiology; D006801:Humans; D053685:Laser Therapy / Q000379:methods; D008297:Male; D008875:Middle Aged; D009998:Ossicular Prosthesis; D010040:Otosclerosis / Q000601:surgery; D011474:Prosthesis Design; D012189:Retrospective Studies; D013067:Speech Perception / Q000502:physiology; D013199:Stapes / Q000002:abnormalities; D013201:Stapes Surgery / Q000379:methods; D016896:Treatment Outcome
chemical_list: D000497:Alloys; C013616:nitinol