Vol.95 No.6 contentsPRACTICA OTO-RHINO-LARYNGOLOGICA
Vol. 95 No. 6 June 2002
A Review of Revision Stapes Surgery
Masaharu Ura, Tatsuhito Owa, Hiroyuki Maeda and Yutaka Noda
(University of the Ryukyus)
Between 1989 and 1998, five revision stapes operations were performed in our department due to unsatisfactory post-operative hearing improvement (3 ears) or progressive deterioration of initial good hearing over time (2 ears).
From the view of surgical findings the causes of poor hearing improvement of the first operation were short prosthesis (3 ears), dislocated prosthesis (2 ears), necrosis of incus long process (1 ear) and scar and granulation (3 ears).
The hearing results of this series showed that the air bone gap closed to less than 10 dB in 3 out of five (60％) and less than 15 dB in the other two (100％).
We concluded that revision stapes surgery should be offered to patients with unsatisfactory hearing improvement or progressive deterioration of an initial good result over time if no developing sensori-neural hearing impairment after initial stapes operation was found.
Key words : revision stapes surgery, otosclerosis, hearing improvement