INFRARED STUDY OF THE INTERACTION OF ACRYLIC BONE-CEMENT WITH BONE-MARROW

Infrared spectroscopy was used for the characterization of some commer cial bone cements and investigation of their interaction with bone mar row. The infrared spectra of the cements and their mixtures with bone marrow were recorded after various periods ranging from 1 day to 8 wee ks. The quantitative analysis of infrared spectra of the mixtures prov ided strong evidence that a certain reaction takes place between the a crylic resins and the bone marrow. It was found that the rate of react ion depends on the concentration of the bone marrow and the ageing tim e. The rate of reaction showed a maximum at 22 and 31 days according t o the concentration of the bone marrow and then decreased with ageing up to 8 weeks.