论文部分内容阅读
目的：采用碳纤维增强碳复合材料（ｃａｒｂｏｎｆｉｂｅｒｒｅｉｎｆｏｒｃｅｄｃａｒｂｏｎ，Ｃ／Ｃ）与羟基磷灰石（ｈｙｄｒｏｘｙａｐａｔｉｔｅ，ＨＡ）复合形成新型种植体（ＣＣＨ），研究它们与骨结合界面的性质，为开发新型种植体提供实验依据。方法：将Ｃ／Ｃ和ＣＣＨ种植体植入１４只兔胫骨内，分别于术后４、８、１６周处死动物。对种植体骨界面作扫描电镜观察、Ｘ线能谱分析。结果：扫描电镜观察到１６周时Ｃ／Ｃ、ＣＣＨ与植床骨组织结合紧密，未见胶原纤维，ＣＣＨ孔内的ＨＡ部分被吸收，有骨组织长入。Ｘ线能谱结果表明Ｃ／Ｃ、ＣＣＨ种植骨界面处有Ｃａ、Ｐ元素的富集。结论：Ｃ／Ｃ、ＣＣＨ与骨形成骨性结合界面
OBJECTIVE: To investigate the effect of carbon fiber reinforced carbon composites (C / C) and hydroxyapatite (HA) on the formation of new implants (CCHs) and to study the properties of their interfaces with bone for the development of new implants in accordance with. Methods: C / C and CCH implants were implanted into the tibia of 14 rabbits, and the animals were sacrificed at 4, 8 and 16 weeks after operation. The implant bone interface was observed by scanning electron microscopy and X-ray energy spectrum analysis. Results: Scanning electron microscopy showed that C / C and CCH were tightly bound to the bone tissue at 16 weeks. No collagen fibers were observed. The HA in the CCH was absorbed and the bone tissue grew in. The results of X-ray spectrum showed that there were Ca, P enrichment in the interface of C / C and CCH. Conclusion: C / C and CCH form bony interface with bone