Arthroscopic treatment of recurrent gouty arthritis Gouty arthritis is a manifestation of gout in the joints. Gout is a systemic disease caused by abnormal uric acid metabolism, mainly manifested by increased blood uric acid and recurrent arthritis, about 75% in the k-toe joint, followed by the knee joint. Uric acid deposits in joints, kidneys or other tissues cause damage to these organs and the formation of gout stones. There are two types of gout: primary and secondary gout. Primary gout has family genetic characteristics in 10-60%, while secondary gout is often secondary to dry blood disease, kidney disease, malignancy, etc. The clinical manifestations of gouty arthritis are: sudden onset of joint pain, redness and swelling of the joints, severe pain, joint ooze, elevated body temperature, angry subcutaneous veins, similar in appearance to cellulitis, dark red skin, swelling often exceeds the anatomical range of the joints, after the redness and swelling subsides, localized edema, itchy or flaky itchy skin can still be seen, as the number of attacks increases, the duration of the attacks increases As the number of episodes increases, the number of affected joints increases, the deposition of uric acid in the joints gradually increases, and it is difficult to relieve the swelling and pain, often resulting in joint deformity and stiffness, etc. About 20% of the joints form gouty stones nearby. Pathological changes: The main pathological changes of gouty arthritis are the formation of gouty stones from urate crystals, which are deposited on synovial membrane and articular cartilage, leading to synovial hyperplasia and formation of blood cataracts, cartilage degeneration, small fissures in the cartilage matrix, and destruction of subchondral bone, forming chisel-like changes with osteophytes at the edges, and joint fibrosis and strong joints when the destruction of joint tissue is serious. When acute joint inflammation, sodium urate crystals can be seen in the phagocytes of the joint fluid, so it can be called “crystalline deposition arthritis”. Treatment: First of all, diet should be controlled, weight should be reduced, and foods containing a lot of purines or calories, such as animal offal, seafood, soybeans, and beer, should be prohibited. In addition, mental stimulation should be avoided. If the blood uric acid is high, you can take appropriate uric acid excreting drugs, and drink more water and eat more alkaline food. Drink more water to increase the excretion of uric acid and to protect the kidneys. The preferred drug is colchicine, which can be taken orally in tablets of 0.5g-l.0mg/h until the symptoms are controlled or when diarrhea, nausea and vomiting occur. Symptoms are usually controlled within 24 to 72 hours, and the effect is faster if administered intravenously. You can also take non-steroidal drugs such as Celebrex and Lapsone, start with high dose and then slowly reduce the dose. Some herbal medicines can also be taken, and all the above conservative treatments can be effective. For gouty arthritis that does not work with the above treatments, and recurrent attacks bring pain to the patient’s work and life, we can perform synovectomy with the help of arthroscopy to remove the gouty crystals and gouty stones in the joints. According to our follow-up observation after the above treatment for gouty arthritis, the efficacy is satisfactory.