Postoperative Hearing Results of Type O Tympanoplasty

Abstract

Hearing results of forty two ears received tympanoplasty without ossicular reconstruction (so called type 0 tympanoplasty) between 1994 and 1997 were evaluated.
Hearing results of forty two ears received tympanoplasty without ossicular reconstruction (so called type 0 tympanoplasty) between 1994 and 1997 were evaluated.
The results were as follows: 1) unexpectedly nearly 59.5% of the cases after type 0 tympanoplasty were classified as success in terms of hearing in spite of the fact that the ossicular chain was not reconstructed. 2) there was statistical difference in success rate between the cases underwent surgery by open methods (72.7%) and those underwent surgery by closed methods (54.8%). 3) in cases those airbone gap was within 20dB, it was suggested that the mobility of the stapes and the extent of the inflammation surrounding the stapes seemed to be important factors to influence the postoperative hearing after type 0 tympanoplasty.