小夹板固定对前臂微循环影响的实验研究

Effect of Small Splint Fixation on Microcirculation of Forearm──an Experimental Study

通过在正常前臂进行小夹板固定对前臂微循环影响的实验研究，结果表明：夹板对局部微循环有一定影响，而对全身血液循环和血液稠度影响不大。0～600g布带约束力时，微循环无明显变化。当布带的约束力影响到微循环时，如果不经常及时地进行功能活动，局部组织缺血缺氧将通过人体血液循环自身调节系统的调节作用，以改善局部微循环，但其改善程度远不及功能活动对微循环改善的程度。故适时适当调整布带的约束力和进行肢体功能活动能较好地消除夹板压力对微循环的影响。

The effects of small splint fixation on the microcirculation of normal forearm were studied experimentally. The results showed that there was certain effect of small splint on local microcirculation, butno obvious influence on general blood circulation and blood viscosity. As the restraint force of bandages applied from 0 to 600g, there were no evident changes in local microcirculation. After the local microcirculation wasaffected by restraint force,without usual dirigation of thearm on time, the local microcirculation as well as thelocal ischemia and hypoxia would be improved throughthe regulation of the autoregulation system of generalblood circulation, but such improvement was far in ferior to that through dirigation. Therefore, the appropriate adjustment of restraint force of bandages at due course and the dirigation of extremities can eliminate the influence of compression of splint on microcirculation more effectively.