After the knee injection of sodium vitrate, the following points should be noted: first, pay attention to the needle hole to avoid contamination: patients need to wound bandage for 1-2 days, and then only be able to remove the bandage, avoiding water, especially taking a bath, can avoid leading to infection of the needle hole. Second, pay attention to rest: especially after the first injection of sodium vitrate, pay attention to the knee joint rest for 1-2 days, can avoid the knee joint reaction after sodium vitrate injection. At the same time, it can effectively protect the knee joint and avoid too much walking or excessive exercise. Third, pay attention to the full course of injection: patients adhere to the injection of sodium vitrate 4-5 times for a course of treatment, in order to effectively maintain the role of sodium vitrate, so that the function of the joint can be effectively restored.