血管化和非血管化骨移植骨强度的比较研究

COMPARATIVE STUDY OF BONE STRENGTH ON VASCULARIZED AND NON-VASCULARIZED BONE GRAFT

采用狗的血供丰富的颌面部为受骨区,用测量扭矩的方法测定血管化和非血管化骨移植的供骨自身强度和供骨与受骨连接端强度并进行比较。结果表明:连接端强度,血管化和非血管化骨移植间无显著性差异(P>0.5),说明在血供好的受区,非血管化骨移植连接端的骨性愈合在时间上和质量上和血管化骨移植相同。供骨自身强度,非血管化骨移植明显低于血管化骨移植(P<0.001)。

A comparative study of bone strength(taken by testing torsion) on Vascularized Bone Graft(VBG) and Non-Vascularized Bone Graft(NVBG)(using the oral maxillofacial region as receptive region) was conducted. There was no statistically difference(p<0.5) on the strength of the union area between VBG and NVBG. This indicated the time and quality of healing on the union area of NVBG were the same as that of VBG when the receptive regions were better vascularized. The strength of donor bone of VBG were higher than that of NVBG(p<0.001).