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When a surgeon uses a wedge shaped blade or an osteotome to cut cortical bone during an operative procedure the bone will fail by a process of microcracking and primary crack propagation. It has previously been observed that crack propagation is dependent on the direction of cutting relative to the main axis of the bone. It has also been observed that microcracks occurring during fracture release acoustic signals that facilitate real-time monitoring of a cutting process. In these novel studies, we labelled damage accumulation during cutting of cortical bone using sequential chelating dyes and we correlated recorded AE signals during cutting with load-displacement curves.
Reilly, G., Safari, A., Taylor, D., McCormack, B.: Sequential Labelling and Acoustic Emission Analysis of Damage Occurring in Cortical Bone During Indentation Cutting.ISB XXth Congress - ASB 29th Annual Meeting, Cleveland, Ohio, USA. July 31 - August 5, 2005. doi:10.21427/xrgc-zm89