Hydrogel-embedded nanocrystalline hydroxyapatite granules (elastic blocks) based on a cross-linked polyvinylpyrrolidone as bone grafting substitute in a rat tibia model

在以交联聚乙烯吡咯烷酮为基础的纳米晶羟基磷灰石颗粒（弹性块）水凝胶包埋材料作为大鼠胫骨模型骨移植替代物的研究