Fig. 4From: Release characteristics of enoxaparin sodium-loaded polymethylmethacrylate bone cementA large number of polymer beads and zirconium dioxide granules were observed under the SEM, which are the powder component of bone cement. The pores among the beads are the carriers and space for drug release. The PMMA bone cement absorbs water through these pores and releases the water-soluble drugs by dispersionBack to article page