Abstract
Objective To study the effects about rhizoma drynariae poly(lactic-co-glycolic acid) (DR-PLGA) /Calcium phosphate cement (CPC) composite scaffold on treating rabbit femoral bone defect. Methods Eight Newzealand rabbits were randomly divided into experiment group(n=4) and control group (n=4). The preparation of rabbit femoral bone defect model, separately implanted DR-PLGA/CPC scaffold and PLGA/CPC scaffold. After 4, 8 weeks, we took out the materials, observed with X-ray, gross anatomy, histology observation to evaluate the osteogenetic activity, the effect of accelerating the healing of bone defect. Resuits At the 4th week and 8th week after implantation, the effect of promoting fracture healing and osteogenic activity of the experiment group were greater than those in the control group. Conclusions DR-PLGA combined with CPC could induce new bone formation, promote the healing of rabbit femoral defect. Key words: Polypodiacease; Rhizoma-drynariae/poly, lactic-co-glycolide facid; Calcium phosphate cement; Rabbits; Treatment outcome
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