骨髓腔内微血管在骨折愈合中的形态变化  

MORPHOLOGICAL CHANGES OF INTRAMEDULLARY CAPILLARY CIRCULATION AFTER FRACTURE

作　　者：张建国[1,2] 李兴富[1,2] 唐英卿 黎家华[1,2] 张颖 夏家骝[1,2] 

机构地区：[1]湖北三峡学院医学院解剖学教研室 [2]北京医科大学解剖学系

出　　处：《中国修复重建外科杂志》1997年第3期146-148,共3页Chinese Journal of Reparative and Reconstructive Surgery

基　　金：湖北省教委科学基金

摘　　要：为探讨骨折造成滋养动脉损伤对骨干皮质深层２／３和髓腔内组织的缺血坏死及骨折愈合的影响，采用墨汁灌注法，观察４只兔骨髓内微血管；另２０只兔制备骨折模型，于术后３，８，１８，２８及４２ｄ处死动物，观察骨折后髓内微血管变化情况。结果表明：在骨折损伤滋养动脉时，髓内及皮质深层２／３供血阻断，髓内微血管增多、扩张，在整个骨折愈合时期（３～４２ｄ），髓内微血管密度高于正常。认为，骨骺与干骺端之间丰富的微血管吻合，在骨折愈后侧支循环的建立中，具有非常重要的作用。To investigate the influence of injury of nutrient artery on the blood supply of inner 2/3 of cortical and intramedullary tissue, the experiment was carried out on twenty four rabbits. Four rabbits were killed and perfused with Chinese ink in femoral artery to survey the blood supply of intramedullary vessels. Others were received fracture on tibia and sacrificed respectively on the third, eighth, eighteenth, twenty eighth,and forty second days after fracture. Chinese ink was also perfused through femoral artery on those rabbits. The relative density of capillary vessels were determined. The results were as follows: when the nutrient artery was injured after fracture, blood supply to the intramedullary tissue and the inner 2/3 of cortical bone was interrupted. The intramedullary vessels were increared and dilated. During the whole course of healing of fraeture, the density of intramedullary capillary vessels were higher than normal. It was concluded that the anastomosis between the epiphysis and metaphysis was important in the reconstruction of collateral circulation in healing of fracture.

关 键 词：毛细血管 形态变化 骨髓腔 骨折愈合 

分 类 号：R683.05[医药卫生—骨科学]