Rheological Properties and Injectability of a Calcium Phosphate Bone Substitute Material

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Abstract:

A calcium phosphate bone substitute material was prepared and its rheological behavior and injectability were studied in this work. The effects of temperature, L/P ratio and adjuvant on the rheological properties and injectability of the pastes were discussed. The results show that the calcium phosphate bone substitute material is injectable with good fluidity and is suitable for the clinical applications. The rheological behavior and injectability of the bone substitute material can be improved by adding adjuvants and optimizing L/P ratio.

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Key Engineering Materials (Volumes 288-289)

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557-560

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June 2005

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© 2005 Trans Tech Publications Ltd. All Rights Reserved

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4 8 12.

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[20] [40] [60] [80] 100 Tim e (m in) Injectability (%) de-ionized water.

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[1] wt% citric acid.

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[2] 0 0 4 0 0 6 0 0 8 0 0 1 0 0 0.

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[2] [4] [6] [8] [1] 0.

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[1] 4 IP IP Viscosity (Pa. s) T im e (s e c ).

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[1] w t% c itric a c id d e io n iz e d w a te r Fig. 10 Injectability of the pastes as a function of time with de-ionized water and citric acid at 25°C and L/S=0. 6 ml/g.

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