In rheumatoid arthritis, the knee joint is often severely painful in the later stages, with no straightening, bilateral flexion deformity, and crane-knee-like enlargement and deformation of the joint, even living in a wheelchair. Although I have actively used ezetimibe and aminoglucose sulfate, I have used a variety of Chinese and adult medicines. He also used a variety of Chinese and adult medicines. However, the pain and dysfunction could not be resolved. What should I do if I have reached this stage? Should I just accept this outcome? Rheumatoid arthritis is a disease located in the synovial membrane and cartilage, so at the beginning, the synovial membrane exudes, swelling of the joint occurs, and a large amount of fluid accumulates. And then, the disease progresses further with the development of vascular opacification, invasion of cartilage, and cartilage destruction, which is manifested by separation of cartilage from the underlying bone, cartilage softening, or localized wall skin-like cracking and peeling of cartilage. In this stage, medication can change this process. There is a therapeutic effect. Further along in the disease, there is extensive cartilage destruction involving the subchondral bone, loss of joint space and proliferation of bone fragments, and osteoporosis. At this stage, the patient develops significant limitation of movement, severe pain, and finally a situation of living on crutches, or in a wheelchair. In this stage, patients take many detours, hoping that special drugs and special treatment methods can relieve the pain, time and time again hope to go, time and time again disappointed to return, are unable to see results. Again and again, they turn to despair. Only the patients and their families know the pain. How to treat? The most effective way to completely relieve the pain in this period is joint surface replacement surgery. I treated a classic patient with rheumatoid knee osteoarthritis, in his 40s, with painful, deformed knees and a head full of gray hair. He came to the clinic with crutches, his face was not in proportion to his gray hair, and he was followed by a boy in his late teens. After examination, I thought she could be treated surgically. The patient said that her biggest wish was to have her legs cured so that she could sit and listen to her daughter-in-law call her mother after she married her daughter-in-law. I felt a little uncomfortable after hearing that the normal and simple human feelings had become a luxury for her. I gave her a double knee surface replacement surgery at the same time. Three days after the surgery, the patient was discharged from the hospital in 14 days. 6 weeks later, the patient was walking on her own, without crutches, and when she first entered the office, I was afraid to recognize her. She had a smile on her face and a confident gait. The boy was still behind her. She said: Dr. Yin, I’m ****, I’m here by myself. How do you see. “I am small” for the first time since I can remember to see me without crutches into Jinan City. This phrase of hers has stuck with me for years. This patient is also most impressed. After all these years, I don’t remember how many cases of rheumatoid arthritis patients I have done replacements for. Only her words are remembered fondly. Perhaps this is the sense of accomplishment of a doctor. To be able to relieve the patient’s pain, to relieve the family’s burden, and to raise hope for the children, this is what my benevolent art can do, right?