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Published on: February 10, 2014
[The biological fixation strength of the bone particle impregnated bone cement]
1Ninth People's Hospital, Shanghai Second Medical University.
Abstract:
This article reports the result of the comparative study on the biological fixation strength of two kinds of bone particle impregnated bone cement. Organic and inorganic bone particle impregnated bone cement were implanted into alternative side of the upper femurs of New Zealand rabbits. The cancellous bone and cortical bone segments of the implanted femurs removed at intervals of 1, 2 and 3 months after operation were subjected to push-out test. In cancellous bone segment, shearing strength of cement-bone interface was increased gradually, but no significant difference between these two kinds of cement after 3 months operation. In cortical bone segment, the interface shearing strength was lower than that of the cancellous bone, but it increased rapidly from 1 month, especially for the organic bone particle bone cement, after 3 months operation the interface shearing strength had a significant difference between the two kinds of cement. More prominent biological fixation effect showed in the organic bone particle group.
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