In one aspect methods of promoting bone growth are described herein. In some embodiments a method described herein comprises disposing a graft or scaffold in a bone growth site. The graft or scaffold comprises (a) a polymer network formed from the reaction product of (i) citric acid a citrate or an ester of citric acid with (ii) a polyol. The graft or scaffold further comprises (b) a particulate inorganic material dispersed in the polymer network.
