Diaphyseal defects of canine tibia bones were replaced with bioactive cylindrical mesh implants made of Ti–6Al–4V titanium alloy. Bone−implant units were cut with a precision cutter using abrasive cutting discs (thickness, 0.76 mm; rotational speed, 2000 rpm; feed rate, 12 mm/min for sample 1 and 5 mm/min for samples 2–4). Tissues were found to suffer thermal damage at a disc feed rate of 12 mm/min; 72.6% of tissues in the projection of the defect cavity were found to be unsuitable for histological examination. At a feed rate of 5 mm/min, thermal damage or significant mechanical damage to the tissues was not observed. Thus, at the stage of preparation of samples of titanium–containing bone−implant units for the assessment of osseointegration, the degree of tissue preservation, under otherwise identical conditions, depends on the cutting tool feed rate.
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Translated from Meditsinskaya Tekhnika, Vol. 54, No. 2, Mar. –Apr., 2020, pp. 31–33.
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Kononovich, N.A., Litvinov, Y.Y., Gorbach, E.N. et al. A Method for Preparation of Samples of Titanium–Containing Bone–Implant Units for Assessing Osseointegration. Biomed Eng 54, 121–124 (2020). https://doi.org/10.1007/s10527-020-09987-1
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DOI: https://doi.org/10.1007/s10527-020-09987-1