[Implantation of ossicles (A histological study in animals) (author's transl)].

Autogenetic and allogenetic incuses as well as xenogenetic malleus were implanted into the middle-ear of rabbits after different procedures of conservation. The process of healing was studied by histological examination. The different conservation methods are leading to different antigenic qualities of the donor material. A different reorganization along the wurse of the donor vessels is resulting. Accordingly a different extent of osteoneogenesis of the intercellular substance is induced. The vascular tissue showed a revascularization in the case of autogenetic transplantation and in the case of implantation after cialit conservation of 1:5000. Whereas deep-freezing led to swelling, cialit conservation 1:500 to temporary fibrosis of the sides of vessels. Hyalinosis of the vessels was observed after lyophilization and gamma-sterilization of the xenogenetic malleus. The different effects on the healing process are discussed.