抄録
The results of tympanoplasty using allogenic auditory ossicle (incus) were studied in 30 ears 6 or more months after surgery. The allogenic auditory ossicles were supplied by Pfrimmer-Viggo Gmbh & Co in individual sterile packs and used for columellae in type III or IV tympanoplasty. Hearing success was defined as a postoperative pure tone threshold of <40dB or a 15dB improvement of hearing level or an air-bone gap of <20dB. The overall success rate was 73% (22 cases). Mean preoperative and postoperative pure tone air-bone gap was 35.0dB and 19.4dB, respectively. The postoperative pure tone air-bone gap was reduced to 20dB or less in 18 patients (60%). In 2 patients (6%) extrusion occurred, one with adhesive otitis media and one with recurrence of cholesteatoma.
The allogenic auditory ossicle (incus) is considered to be an effective alternative prosthetic material for ossicular chain reconstruction.
