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目的：观察旋转磁场对断肢家免的止痛效应。方法：采用行为测痛方法，以饱和ＫＣｌ溶液电极作用于家免右前肢足背部皮肤刺痛，动物开始出现撤腿反射为痛阈反应指标，测定家免断肢前后痛阈及旋转磁场对其的影响。结果：断肢后比断肢前痛阈明显降低（Ｐ＜０．０１），旋转磁场治疗１周后痛阈又明显升高（Ｐ＜０．０１），而对照组无明显变化。结论：磁疗可缓解疼痛，促进创伤愈合。提示磁疗可作为骨折和创伤止痛的辅助疗法。
Objective: To observe the analgesic effects of rotating magnetic field on limbs. Methods: The behavioral pain method was used. Totally irritated skin was excised from the skin of the dorsal forearm in a saturated KCl solution electrode. The pain relief threshold was measured in the animals and the pain threshold and rotating magnetic field Impact. Results: The pain threshold was significantly lower than that before the amputation (P <0.01). The pain threshold was significantly increased after 1-revolution magnetic field treatment (P <0.01), but there was no significant change in the control group. Conclusion: Magnetic therapy can relieve pain and promote wound healing. Tips Magnetic therapy can be used as a secondary treatment of fractures and trauma pain.