Surgery·Surgery
Day of knee replacement
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Knee replacement surgery is a procedure where a surgeon removes damaged parts of your knee joint and replaces them with artificial parts. The day of surgery is when you go to the hospital, have the operation, and begin your recovery.
Key facts
Yes, knee replacement is one of the most common joint replacement surgeries in the world.
It is usually done for people with advanced arthritis or severe knee damage that causes pain and limits daily activities.
Before surgery, your doctor will do a full assessment to decide if knee replacement is right for you.
You will meet with the surgical team who will explain the procedure, answer your questions, and make sure you are healthy enough for anesthesia. You may also have a physical exam and an electrocardiogram (EKG) to check your heart.
Treatment on the day of knee replacement includes the surgery itself and the first steps of recovery. The surgeon makes a cut over the knee, removes damaged bone and cartilage, and fits the artificial joint. After surgery, you will be taken to a recovery area where nurses monitor you.
Your care team will give you pain relief medicines, usually through an IV or by mouth. They may also give you antibiotics to prevent infection and blood thinners to lower the risk of clots. Physical therapy usually starts the same day or the next day.
Surgery is scheduled when you and your doctor decide that non-surgical treatments like medicines, injections, or physical therapy no longer control your pain.
After surgery, you will need to rest and gradually start moving your knee. Most people use a walker or crutches for a few weeks. You can expect to return to many daily activities within 3 to 6 weeks, but full recovery takes several months.
Eat a balanced diet with plenty of protein, fruits, and vegetables to help healing. Drink water to stay hydrated. Do the exercises your physical therapist gives you – these are key to regaining strength and movement.
It is normal to feel anxious or frustrated during recovery. Pain and limited movement can affect your mood. Talk to your care team or a counsellor if you feel down for more than a few weeks.
You cannot always prevent the conditions that lead to knee replacement, but keeping a healthy weight and staying active can slow joint damage.
Most people who have knee replacement experience much less pain and better movement. The artificial joint usually lasts 15 to 20 years. With proper care, you can return to many activities you enjoy.
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Always verify with your doctor
Health guidelines vary by country and region. The information in this article is based on international clinical guidelines but may not reflect the specific guidelines, medications, or practices in your country. Always discuss your health concerns with your own doctor or healthcare provider, and refer to your local national health guidelines where available.
Important notice This information is for educational purposes only. It does not replace professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider about your specific situation. If you are experiencing a medical emergency, call your local emergency services immediately.
This article is educational and is prepared with reference to recognized health information and clinical guidance sources where available. Specific source links may vary by topic.
Last updated: July 17, 2026
Educational note: This information is for education only and is not a diagnosis.
Use it to support, not replace, advice from a licensed clinician.
If symptoms are severe, worsening, or urgent, call your local emergency number or seek emergency care.