各種保存骨移植に関する実験的研究 : 冷凍保存同種胃移植に關する研究 V

Abstract

Comparative researches were conducted histologically and radiologically on the fresh authogenous, the homogenous, the Lolled, and the preserved rabbit ribs at -20℃, -25℃ and +5℃, which were transplanted in tibiae of rabbits. The results were as follows : 1) In fresh bones the ossal union was completed within 6 weeks.. In refrigerated homogenous bone it was delayed for only a little while, even when preserevd for a long term. The homogenous grafts cooled-preserved at +5℃ for a long term showed a much more delayed union. The results of the boiled homogenous bone were lowest, being absorbed too early. 2) The grafts, with the exception of the boiled bone, were absorbed and replaced by the host in the process of so-called "creeping substitution". In this process it was suspected that they were stimulating the new bone proliferation. 3) In conclusion the refrigerated bone is the best of all the preserved bone grafts to-date