Bioinert Ceramic Implants in Middle Ear Surgery

Abstract

The suitability of different ceramic materials for reconstructive middle ear surgery was examined in extensive animal experiments. Since 1978 we have used more than 250 aluminum oxide ceramic implants for ossicular chain reconstruction. The excellent tolerance of this bioinert material was confirmed. The ease and precision with which these implants can be drilled during the operation is especially advantageous. The indications and techniques for the use of the aluminum oxide ceramic implants are described. Our short-term results stimulated the further development of bioinert ceramic implants and our surgical techniques. The special characteristics of bioactive ceramics are such that they can form a tight bond to osseous bone. They are intended for filling bone cavities (porous tricalcium phosphate ceramic) and for reconstruction of the posterior canal wall.