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Yeungnam Univ J Med > Volume 13(1); 1996 > Article
Yeungnam University Journal of Medicine 1996;13(1):116-133.
DOI: https://doi.org/10.12701/yujm.1996.13.1.116    Published online June 30, 1996.
Histological Observation of Bone Reaction with Relation to Surface Treatment of Titanium.
Myun Whan Ahn, Yong Sug Choi, Jong Chul Ahn, Jae Sung Seo, Dong Chul Lee, Jae Hyuk Jang
Abstract
The biocompatibility of the titanium has been estabilished through various experimental studies such as cell culture toxicity test, pyrogen test, mutagen test and others. In order to confirm biocompatibility after fabrication of titanium and to clarify the difference between the bone reaction after insertion of the lathed titanium rods and the bone reaction after insertion of the finished and polished rods, both rods were implanted into the proximal femur of a rabbit. Histologic reactions in the bone were observed according to the ASTM standards at the intervals of 6 weeks, 12 weeks and 26 weeks after implantation. The result were as follows In 6 weeks after implantation of lathed titanium rods, inflammatory reactions, such as minimal degree infiltration of polymorphonuclear leukocytes and lymphocytes were observed in all cases. This was thought to be caused by surgical trauma. However, inflammatory cell infiltration was not seen after implantation of polished and finished rods in all cases. The cellular infiltration and the histologic reaction of the bone after implantation of lathed group were significantly more pronounced than those after implantation of the finished group. In 12 weekt after implantation of lathed rods, two of four cases revealed a minimal degree of cellular infiliration and histologic reaction seemed to be more pronounced in the lathed group, but they were not significant statistically.
Key Words: Experimental biocompatibility, Long-term implant test, Titanium, Bone reaction, Histology


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