[Elimination of bone defects with the aid of a transplant (bone morphogenetic protein BMP) prepared according to Urist's method. Animal experimenst compared with Kieler spongiosa].
In two groups of six beagle dogs a standardized bone defect of 1 cm was replaced by a) "Kieler Spongiosa", and b) autologous bone material, prepared according to the formula of Urist. Instead of mechanical insufficiency an impressive osteogenetic potency and periosteosis was noticed in group b.