Retrospective analysis of outcomes after stapedotomy with implantation of a self-crimping Nitinol stapes prosthesis.
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.
Sorom
Abraham J
AJ
Department of Otolaryngology-Head and Neck Surgery, Mayo Clinic, Rochester, MN 55905, USA. sorom.abraham@mayo.edu
Driscoll
Colin L W
CL
Beatty
Charles W
CW
Lundy
Larry
L
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
D000497:Alloys; C013616:nitinol