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Updated: Aug 24, 2026
Endoscopic Cholesteatoma Surgery
Published on: January 19, 2022
[Tympanoplasty with hybrid prostheses]
1Klinik und Poliklinik für Hals-, Nasen-, Ohrenheilkunde, Klinikum der Universität zu Köln, Cologne. hno.neugebauer@uni-koeln.de
Background:
The retrospective study reviews the hearing results of partial and total ossicular replacement plasties with prostheses composed of a hydroxylapatite head and a trimmable shaft.
Patients And Methods:
71 patients underwent tympanoplasty type III between January 1996 and January 2002. The partial (PORP) (55 patients) and total ossicular replacement prostheses (TORP) (16 patients) were a composition of a hydroxylapatite head and a trimmable hydroxylapatite-polyethylene composite shaft (HAPEX ). Hearing results were evaluated according to the guidelines of the Committee on Hearing and Equilibrium.
Results:
In cases with a PORP the residual air-bone gap could be reduced to < or = 20 dB in 73% of the patients. The mean air-bone gap improved from 28 dB preoperatively to 17 dB postoperatively. In cases with a TORP the residual air-bone gap could be reduced to < or = 20 dB in 62% of the patients. The mean air-bone gap improved from 32 dB preoperatively to 20 dB postoperatively.
Conclusions:
The hearing results with prostheses composed of a hydroxylapatite head and a trimmable shaft are good and comparable to the results of authors using other synthetic ossicular prostheses. These prostheses are time-saving because the trimmable shaft can be quickly cut and shortened to an individual length.
