Injectable and fast resorbable calcium phosphate cement for body-setting bone grafts
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In this work a calcium phosphate (CPC)/polymer blend was developed with the advantage of being moldable and capable of in situ setting to form calcium deficient hydroxyapatite under physiological conditions in an aqueous environment at body temperature. The CPC paste consists in a mix of R cement, glycerol as a liquid phase carrier and a biodegradable hydrogel such as Polyvinyl alcohol, which acts as a binder. Microstructure and mechanical analysis shows that the CPC blend can be used as an injectable implant for low loaded applications and fast adsorption requirements. The storage for commercial distribution was also evaluated and the properties of the materials obtained do not significantly change during storage at −18°C.
This work was supported by the Spanish Ministry of Education and Science, project “Estancias de jovenes doctores extranjeros en universidades publicas y centros de investigacion españoles” 2007–2008. O. Castano also acknowledges the MICINN for the Ramony Cajal contract.
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