The influence by a fibrin-adhesive on healing has been investigated in heterologous cancellous transplants in the rabbit ilum. After 8 and 12 weeks the radiologic and histologic results were evaluated. In the control group the fibrously surrounded transplants were resorbed and replaced by metaplastic bone only to a little degree. Applicating the fibrin-adhesive system (FKS) the transplants were osseously connected to the bone bearing. The trabeculae wre surrounded by newly built lamellar bone and resorbed during the following periods. The osteogenic potency of heterologous transplants resp. the efficiency of the bone bearing can be improved by application of the FKS.