1, rehabilitation guidance: 1, continue to follow medical advice for functional exercise, pay attention to gradually increase the amount of activity, avoid over-activity to prevent joint swelling, fluid accumulation. 2.Walking should increase the number of times per day, followed by gradually increasing the walking distance. When walking, you should use a walking frame or crutches to protect the joints. Li Anping, Department of Joint Surgery, Hainan Provincial People’s Hospital 3.A week after going home, you can use a static bicycle for rehabilitation training; avoid dancing, sports and other (except swimming) intensive activities for six weeks after surgery. 4.Quadriceps muscle strength training: (1) Straight leg raise: 100pcs/day, 10pcs/group, at least three months. (2) Sitting bedside leg raise exercise: 1-2 kg of sandbag at the ankle. 2. Dietary guidance: 1. Should avoid: eating too much spicy, stimulating food. 2, appropriate to increase nutrition, improve the body’s resistance: eat more high-protein, high vitamin, low-fat easily digestible food. Such as: fish, lean meat, eggs, soy products, fresh fruit, etc. 3, prevent constipation: should pay attention to increase the intake of coarse fiber things, such as fresh vegetables (leeks, artemisia stems, celery, etc.), eat more fruits such as bananas, but also drink honey water (except for diabetic patients). 4. Weight control: avoid overburdening the artificial joint. Caution: 1. If there is: incision oozing, wound redness, swelling, heat, pain, body temperature higher than 385C, please consult the doctor immediately. Follow the medical advice to use anti-inflammatory drugs. 2.Treat minor illnesses, such as infection follow medical advice and use antibiotics in a timely manner; avoid bacteria entering the joint cavity with blood circulation and causing prosthesis infection. 3, 6 weeks post-operative outpatient review.