Abstract
Conversion of bovine cancellous bone to a useful biomedical xenograft material involves several processing steps which include boiling, defatting and deproteination (i.e. bleaching). This study has shown how these processes can influence cancellous bone modulus and strength. It was found that prolonged boiling in water for six hours followed by NaOCI bleaching had a deleterious effect on the overall strength of the bovine bone. In contrast, bone samples subjected to only moderate boiling (1.5 hours) exhibited a 22% stiffness increase due mainly to the effects of drying. The same stiffened samples, when subjected to the bleaching procedure, retained some strength with only a small reduction in moduli values. It can be concluded that careful control of defatting and bleaching procedures on bovine bone is able to give a strong, albeit, brittle material with preservation of the original bone architecture. The bone xenograft materials are worthy of further investigation in in vivo clinical trials to assess their performance in contact with biological fluids. © 2000 Kluwer Academic Publishers
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Anderson, I.A., Mucalo, M.R., Johnson, G.S. et al. The processing and characterization of animal-derived bone to yield materials with biomedical applications. Part III: material and mechanical properties of fresh and processed bovine cancellous bone. Journal of Materials Science: Materials in Medicine 11, 743–749 (2000). https://doi.org/10.1023/A:1008932013702
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DOI: https://doi.org/10.1023/A:1008932013702