超短波对家兔膝关节骨关节炎形成过程的影响

目的：探讨超短波对家兔骨内高压致骨性关节炎形成过程的影响。方法：随机取纯种新西兰成年白兔12只，分为对照组和实验组，分别施单下肢股静脉，制成骨内高压模型。实验组采用短波一侧下肢微温量治疗30d，每日1次，每次20min，10，12和14周后分别处互，死前分别行X线片、同位素骨扫描。处死后行关节软骨、骨组织的光、电镜切片观察。对照组不作任何处理。结果：X线片、同位素扫描和光、电镜切片显示，治疗组细胞结构、形态等病理改变明显轻于对照组。结论：超短波治疗可以延缓骨内高压对骨关节的破坏。

The influence of ultrashort-wave diathermy on the development of osteoarthritis in the knees of rats

Objective To study the influence of ultrashort-wave therapy on osteoarthristis of knee joint caused by the intraosseous hypertension in rabbit. Methods Twelve New Zealand rabbits were subjected to the ligation of the veins in either hind limb to establish the model of intraosseous hypertension, and then randomly divided into 2 groups: the experimental group and the control group. The animals in the experimental group were treated with ultrashort-wave for 20min, once a day for 30 days, while those in the control group were not. Radiological examination as well as 99mTC-MDP scintigraphy were carried out at 10,12 and 14 weeks before these animals were killed. Light microscopic examinations were conducted to observe the changes of bone tissues including the cartilages of the knee joints. Results The pathological changes both in the cellular structures and the morphological patterns were significantly milder in the experimental group as compared with those seen in the control group. Conclusion Ultrashort-wave diathermy can delay or alleviate the deteriorative effects of intraosseous hypertension on knee joints of the rabbits.