滋养动脉结扎对兔股骨血供的影响

目的 了解滋养动脉损伤对股骨血供的影响。方法 选取新西兰白兔12只，随机分成实验组6只，对照组6只。采用放射性核素显像方法，观察滋养动脉结扎后当天，第4、9、12、16、20天，兔股骨血供的变化。结果 洋养动脉结扎后当天，股骨干及上、下干骺端血供明显下降（P＜0．05）；第4天血供恢复接近正常（P＞0．05）；第9、12天血供超过健侧；第16天重新恢复正常。结论 滋养动脉结扎对全股骨血供均有影响，以股骨干最重，上干骺端次之，下干骺端最轻。但血供恢复的速度较快，不造成长期影响。

Effects of ligature of nurtient artery on blood supply of femur in rabbits

Objective To study effects of ligature of nutrient artery on blood supply of femur in rabbits.Methods 12 New Zealand rabbits were randomly divided into experimental group(n=6) and control group(n=6).The changes of blood supply of femur in rabbits at lst,4th,9th,12th,16th and 20th days after nutrient arteries were ligated were observed by using radionuclide imaging method.Results At lst day after nutrient arteries were ligated,the blood supply of femoral shaft and its superior and inferior metaphysis obviously decreased (P<0 05);at 4th day,it recovered nearly to normal (P>0 05);at 9th and 12the days,the blood supply was more ample than that of control group;and at 16the day,it recovered to normal again.Conclusion The ligature of nutrient artery had effects on blood supply of whole femur,which was most strong in shaft of femur,then that in the superior and inferior metaphysis.The blood supply recovered quickly and had no long-term effects.