Modified Type III and Type IV Tympanoplasties in Our Department

In the past 4 years, middle ear surgery has been performed on 166 ears. A total of 42 ears operated on by modified type III tympanoplasties, and 19 ears operated on by type IV tympanoplasties were reviewed. The type III tympanoplasty group included 12 ears with cholesteatoma and 20 with chronic otitis media. The type IV tympanoplasty group included 9 cases of cholesteatoma and 5 cases of chronic otitis media. Postoperative hearing results were evaluated, and success rates in hearing results were 81.6% of type III patients, and 66.7% of type IV tympanoplasty patients. Second surgeries were performed on 7 ears previously operated on at other hospitals, and success was observed in 6 ears. In 18 ears, artificial columella (hydroxyapatite) was used for reconstruction of the ossicular chain, and discharge of the columella was observed in only 1 ear. In 21 ears with cholesteatoma and reconstruction of the ossicular chain, residual recurrence of cholesteatoma was observed in 3, but true recurrence of cholesteatoma was not experienced.