Methods An emulsion blend method was employed to prepare the composite of poly-D-L-lactic acid (PDL-LA), hydroxyapatite (HA) and decalcified bone matrix (DBM), called PDLLA/HA/DBM.

• 方法采用乳液共混法将消旋聚乳酸(PDLLA)、羟基磷灰石(HA)、脱钙骨基质(DBM)结合,制成PDLLA/HA/DBM人工骨,并将PDLLA/HA/DBM和PDLLA进行兔桡骨大段骨缺损修复的对比研究。