[Bone and cartilage allografts in microsurgery of the ear].

The authors present there experience with bone allografts and costal cartilage allografts in middle ear microsurgery. A drastic selection of the doners and a careful preparation of the grafts avoid the risk of viral transmission to the receiver. The easy available materials can be used for reconstructing the ear drum, the ossicular chain and the tympanic bony wall. With good anatomical and functional results, even at long-term (3 and 4 years).