可降解骨内固定材料研究进展

金属内固定材料存在力学性能不匹配以及由于金属内固定物的松动和蚀损导致局部的炎症反应和组织坏死等弊端。可降解吸收性骨内固定材料具有生物可降解吸收性和力学性能的衰减性，在理论上最符合骨折生物学固定的要求，现已成为骨内固定材料研究的热点。文章综述了天然及人工合成可完全降解高分子骨内固定材料类型，并对纳米羟基磷灰石及磷酸钙纤维增强可完全降解骨内固定复合材料的研究进展作了总体概括。

Research development of degradable bone internal fixation materials

Mental internal fixation material exists some problems, such as mismatching mechanical property, local inflammatory reaction and tissue necrosis induced by the loose and corrosion of mental internal fixation materials. Degradable bone internal fixation materials are characterized by biological degradable absorption and attenuating property of mechanical property, which meets the requirement of fracture biological fixation theoretically and has been a hot point of internal fixation research. This study summarized the type of degradation polymer bone internal fixation materials, which included natural and synthesized, and summed up the research development that used to the nanometer hydroxylapatite (n-HA) and the calcium phosphate fibers (CPPF) strengthening degradation polymer material as bone fixation materials.