| 摘要 |
The invention relates to a composition for injectable cement, comprising a mineral sold phase, a separate liquid phase and, optionally, microparticles of a biocompatible and biodegradable polymer. The mineral solid phase comprises a mixture of powders with the molar composition: (CP)<SUB>6 </SUB>(CaO)<SUB>y </SUB>(SrCO3)<SUB>z</SUB>, [CP being CaHPO<SUB>4</SUB>2H<SUB>2</SUB>O, CaHPO4, Ca<SUB>1-x</SUB>Sr<SUB>x</SUB>HPO<SUB>4</SUB>, an equimolar mixture of bis(Ca(H<SUB>2</SUB>PO<SUB>4</SUB>)<SUB>2</SUB>, H<SUB>2</SUB>O and CaO, or a mixture of two or three of said compounds] and y+z=4?1. The liquid phase comprises pure apyrogeneic water or a saline aqueous solution with pH 4 to 9. The ratio L/P [volume of liquid phase/mass of solid mineral phase] is at least 0.4 ml/g. The above is of application as bone replacement.
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