Maeda A, Horibe S, Matsumoto N, Nakamura N, Mae T, Shino K
Department of Orthopaedic Surgery, Osaka University Medical School, Suita, Japan.
J Bone Joint Surg Br. 1998 Jul;80(4):731-6. doi: 10.1302/0301-620x.80b4.8174.
We examined solvent-dried, gamma-irradiated (SD-R) allografts and fresh-frozen (FF) allografts mechanically and morphologically. Before transplantation, FF grafts were more than six times stronger than SD-R grafts. After four weeks, the tensile strength was about the same in both groups. At 24 weeks only collagen fibrils of small diameter were observed in the SD-R grafts while in FF grafts fibrils of small and intermediate diameter were seen. Clinically, we suggest that SD-R grafts could be used as a favourable alternative to FF grafts if care was taken regarding their initial mechanical weakness.
我们对经溶剂干燥、γ射线辐照（SD-R）的同种异体移植物和新鲜冷冻（FF）的同种异体移植物进行了力学和形态学检查。移植前，FF移植物的强度比SD-R移植物强六倍多。四周后，两组的拉伸强度大致相同。在24周时，在SD-R移植物中仅观察到小直径的胶原纤维，而在FF移植物中则可见小直径和中等直径的纤维。临床上，我们认为，如果注意到SD-R移植物最初的力学弱点，它们可以作为FF移植物的一个有利替代物。
