Sodium vitamate is not a closed needle, this drug is a joint lubricant, through intra-articular injection, can effectively reduce the wear and tear of the joint caused by cartilage degeneration, to avoid joint degeneration, for osteoarthritis and chondromalacia patella, has a very good preventive and therapeutic effect. The usual closed needle is prednisolone acetate and other hormonal drugs, as well as lidocaine hydrochloride injection, anesthetic, vitamin B12, nerve and tissue nutrition drugs together, closed needle usually played in the muscle and bone attachment point location, but also in the muscle, tendons and ligaments and other soft tissue pain areas, only local injection. Sodium vitamate is injected into the joint, and sodium vitamate is usually injected once a week for five weeks, while the closure is only applied locally once, if the effect is not good after a few days, you can consolidate a shot, but will not be used for too long.