Patient: It is now difficult to walk up and down stairs, and the knee joint cannot be bent when walking on flat ground, somewhat similar to stiffness, which is obvious when looking at the leg externally. I have already contacted you and have a few questions to ask: ① Can I walk normally after knee replacement? What are the restrictions on movement? ②How long do I need to stay in the hospital for both knee replacements? What is the procedure of treatment? ④How can I do rehabilitation exercises after surgery? Orthopedic Department: After knee replacement, you can walk normally, except for squatting and kneeling, there should be no restrictions on your activities. Hospitalization usually takes a little over 2 weeks, as the wound removal time is 2 weeks. Your hospital stay may be a little longer because there is still a little preparation to be done before surgery. In addition, if you are currently taking anti-inflammatory and analgesic medications such as fentanyl, fotarine, intravenous, mobic, etc., it is best to stop using them about 3 weeks before surgery because these types of medications can affect clotting time and pain control is changed to pain medications such as tramadol. Cost: The price of a high-flexion artificial joint is about 40,000, two is 80,000, plus the cost of surgery and hospitalization is about 20,000, so the total cost should be between 100,000 and 110,000. The part of the reimbursement according to the specific rules of your Changzhou area, it is recommended that you come to the local hospital to open a referral form before hospitalization, and go to the local medical insurance center to ask about the specific percentage of reimbursement, as well as the specific requirements on the writing of various sheets. The principle of post-operative rehabilitation training is to move as early as possible, and active activities and weight training should be carried out as soon as possible. Rehabilitation training is a longer-term work, and it is generally recommended to train every day for six months after surgery, but of course the early training is the hardest, and the later the less hard, and the training after one to two months is basically not too hard.