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Surgical procedures such as osteotomy and hip replacement involve the cutting of bone with the aid of various manual and powered cutting instruments including manual and powered bone saws. Frictional rubbing between the blade of the saw and the bone results in the generation of localised heating of the cut bone and increased cutting forces (Ark et al, 1997). Overheating in localised areas can cause bone necrosis and have an impact on the rate of healing of the bone post operation and overheating also affects the sharpness life of the blade. A review of the literature indicates that work has been complete on temperature in the immediate cutting zone. This study is focusing on the size of the overheated zone relative to the cutting position.
Parsa, H., Reilly, G., McCormack, B., Macey, A.: An Investigation of the Heat Affected Zone in Cortical Bone Sawing. Bioengineering In Ireland Conference, Killiney, Co. Dublin. January 28-29, 2005.