关键词: 富血小板血浆, 显微结构, 生物力学, 强骨胶囊, 骨质疏松骨折

Abstract: Objective To study the effect of platelet rich plasma combined with Qianggu capsule on osteoporotic fracture healing in rats. Methods 80 unmatched and 3-month-old female healthy SD rats were divided into blank group (group K),PrP group (group P),Qianggu capsule group (group Q),combined group (group L) and 20 rats in each group. The differences of callus morphology,histomorphology and biomechanical indexes among the four groups were analyzed. Results After comparing the two groups,the volume,quantity,thickness and connection density of trabecula in the combined group were higher than those in the single drug group,and the separation and surface area volume ratio were lower than those in the control group (P< 0.05); the maximum load,structural energy absorption,material maximum stress and material energy absorption in the combined group were higher than those in the single group; after comparing the two groups,in the combined group,skeleton area and area ratio of cartilage or osteotylus in the treatment group were higher than that in single-drug group. Conclusion Platelet rich plasma combined with Qianggu capsule may enhance the bone density and bone strength of the fracture site,and the osteoporotic fracture healing in rats is good.

Key words: Platelet rich plasma, Microstructure, Biomechanics, Qianggu capsule, Osteoporotic fracture