《黄帝内经·灵枢·杂病》
腿的膝盖中疼痛，应用员利针刺足阳明胃经的犊鼻穴，出针之后，间隔一段时间可以再次治疗。
膝中痛，取犊鼻，以员利针，发而间之。
If there is pain in the knee, insert a long and thin acupuncture needle into the Dubi acupoint on the Foot Yangming Stomach meridian, and after removing the needle, wait a period of time before treating again.