Mechanic and microbiology of plates produced from bovine cortical bone, conserved in several means/Mecanica e microbiologia de placas produzidas a partir de osso cortical bovino, conservadas em diferentes meios

The objective of this study was to evaluate the mechanical strength of bone plates yielded from bovine cortical bone, conserved in different solutions, and the efficiency of these solutions in the inhibition of microorganism's growth. A hundred and sixty eight plates yielded from bovine tibiae were conserved in 98%o glycerin, 150% saline solution, 300% sugar solution, Dakin solution, frozen in Nat--196°C, or sterilized in ethylene oxide gas. After rehydration in NaCl 0.9% solution for six hours, plates were subjected to tensile, compression, bending and twisting testing. The microbiological evaluation of bone plates was s carried out before and immediately after rehydration, with or without enrofloxacin 0.5% addition. There was no significant difference (P