X-ray films,prepared Chinese ink microarteriography and tissure slice examination show that affection of limeted contact nails to allograft-host healing and revascularization of bone is smaller than non-chuted nails.

• 通过对动物模型的X片、微血管墨汁造影及组织学观察，显示有限接触髓内钉对骨再血管化进程影响小于无槽髓内钉，二组间有显著差异：异体骨愈合速度也较无槽髓内钉快，髓痴密度较高。