摘要
对照研究了Ｈｅ－Ｎｅ激光和弱ＣＯ２激光照射对骨折愈合的作用。将４８只新西兰白兔左桡骨造成实验性骨折，将之分为三组，其中一组为对照组，另外两组分别接受２８ｍＷ／ｃｍ２的Ｈｅ－Ｎｅ激光及１５０ｍＷ／ｃｍ２的ＣＯ２激光照射，每日１次，每次１０分钟，直接照射骨折部位。将动物分别于骨折后１５天和３５天分批处死。拍摄Ｘ线片，测定骨痂中胶原及钙的含量，测试３５天愈合骨的生物力学抗扭性能。结果：ＣＯ２激光及Ｈｅ－Ｎｅ激光照射均促进了骨折愈合，且在骨折后１５天时，ＣＯ２激光照射的作用效果显著优于Ｈｅ－Ｎｅ激光照射，而在骨折后３５天时，从临床意义上讲，其差异无显著性。
The effect of 28mW/cm 2 He Ne laser irradiation on the fracture healing was contrasted with that of 150mW/cm 2 CO 2 laser irradiation in New Zealand rabbits with experimental fracture of the left radius.The 48 rabbits were divided into three groups.The fracture areas of the A and B group were respectively irradiated with 28 mW/cm 2 He Ne laser and 150mW/cm 2 CO 2 laser for 10min once a day.The C group serving as control group was not exposed to laser.The animals were killed respectively 15 and 35 days postfracturally.Four indices of therapeutic evaluation were examined,such as roentgenogram,collegn and Calium content in callus and biochanical anti torsion strength.The results show that both 150mW/cm 2 CO 2laser and 28mW/cm 2 He Ne laser irradiation can accelerate fracture healing,on the 15th day after fracture the cutative effect of CO 2laser is better than that of He Ne laser,and on the 35th day after fracture there is no significant difference in clinical sense between the CO 2 laser and the He Ne laser irradiation.
出处
《承德医学院学报》
1998年第1期1-3,共3页
Journal of Chengde Medical University
