Knee pain can slowly become a part of everyday life. Simple activities such as walking, climbing stairs, getting out of a chair, or even sleeping comfortably may become difficult. When medications, physical therapy, lifestyle changes, and other non-surgical treatments no longer provide enough relief, your doctor may discuss knee replacement surgery.
If you or a loved one is considering this option, it is natural to have questions. What happens during surgery? How long does recovery take? Will the knee feel normal again?
Let’s walk through the knee replacement procedure in simple terms so you know what to expect.
What Is Knee Replacement Surgery?
Knee replacement surgery, also called knee arthroplasty, is a procedure in which damaged surfaces of the knee joint are removed and replaced with artificial components. A total knee replacement generally involves resurfacing parts of the thighbone and shinbone with metal and durable plastic components.
The procedure is most commonly considered when severe arthritis has damaged the knee and causes persistent pain, stiffness, and difficulty with daily activities.
Not everyone needs a total knee replacement. If damage is limited to one part of the knee, a partial knee replacement may sometimes be considered instead.
For a more detailed explanation, you can learn about the knee replacement procedure and how total knee replacement works.
When Might Knee Replacement Be Recommended?
Knee replacement is generally considered when knee pain and stiffness significantly affect your quality of life and other treatments have not provided sufficient relief.
Common symptoms may include:
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Persistent knee pain while walking or resting
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Difficulty climbing stairs
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Stiffness that limits movement
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Swelling around the knee
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Difficulty standing or walking for longer periods
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Problems performing everyday activities
Osteoarthritis is one of the most common reasons people undergo knee replacement. Arthritis can gradually wear away the cartilage that normally helps the bones move smoothly against each other.
Your orthopedic surgeon will consider your symptoms, medical history, physical examination, imaging results, and response to previous treatments before recommending surgery.
How Do You Prepare for Knee Replacement?
Good preparation can make the recovery period easier.
Before surgery, your doctor may review your medications and overall health and provide instructions about eating, drinking, medications, and other preparations.
It is also helpful to prepare your home before returning from the hospital. For example, frequently used items can be kept within easy reach, loose rugs and electrical cords can be removed, and safety supports can be arranged in the bathroom. The American Academy of Orthopaedic Surgeons also recommends planning meals and arranging assistance at home when needed.
Think of this preparation as setting yourself up for a smoother recovery rather than simply preparing for the operation itself.
What Happens During the Procedure?
On the day of surgery, you will receive anesthesia to prevent you from feeling pain during the operation. Your surgical team will monitor you throughout the procedure.
The surgeon makes an incision around the knee to access the damaged joint surfaces. The damaged portions of the femur and tibia are carefully prepared, and the appropriate artificial components are positioned to recreate a functioning joint.
The goal is to create a stable knee that allows smoother movement and helps reduce the pain caused by the damaged joint.
Once the components are in place, the surgical area is closed and you are moved to a recovery area for monitoring.
The exact surgical approach and implant components can vary depending on your knee condition, anatomy, overall health, and your surgeon’s technique.
What Is Recovery Like?
Recovery doesn’t happen overnight. Your knee may feel sore and swollen initially, but this is expected after major joint surgery.
One of the most important parts of recovery is rehabilitation. Physical therapy usually focuses on gradually improving:
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Knee movement
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Leg strength
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Balance
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Walking ability
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Independence with everyday activities
Your healthcare team will give you specific exercises and instructions based on your progress.
You may initially need assistance with walking and everyday tasks. As your strength and confidence improve, you can gradually return to more normal activities according to your surgeon’s recommendations.
Because recovery can take several weeks, preparing your home and arranging help ahead of time can be especially useful.
What Are the Benefits?
The main reason people consider knee replacement is to reduce pain and improve their ability to perform everyday activities.
For someone whose knee pain has made walking, exercising, working, or enjoying normal activities difficult, successful surgery and rehabilitation can make movement easier.
However, results can vary from person to person. Recovery depends on several factors, including your overall health, muscle strength, condition of the knee before surgery, rehabilitation, and adherence to your medical team’s instructions.
Are There Risks?
Like any major surgery, knee replacement has potential risks. These can include infection, blood clots, bleeding, stiffness, continued pain, problems with the implant, or the need for additional surgery.
Your surgeon will discuss the specific risks that apply to you before the procedure. It is important to share your complete medical history and all medications and supplements you take so your healthcare team can plan your treatment appropriately.
If you develop unusual symptoms during recovery, contact your healthcare provider rather than trying to manage the problem yourself.
How Can You Support a Successful Recovery?
Your role does not end when surgery is over. Following your rehabilitation plan is an important part of recovery.
Keep your follow-up appointments, complete your recommended exercises, use walking aids as instructed, and give your body time to heal.
It can also help to focus on small improvements rather than expecting everything to return to normal immediately. Being able to walk a little farther, bend the knee more comfortably, or perform an everyday task independently can all be signs of progress.
Final Thoughts
A knee replacement can sound intimidating, especially when you don’t know what to expect. Understanding the process can make the experience feel more manageable.
From preparing your home before surgery to completing physical therapy afterward, each stage plays an important role. The decision to undergo surgery should be made in consultation with a qualified orthopedic professional who can evaluate your individual condition and discuss appropriate treatment options.
If ongoing knee pain is interfering with your everyday life, discussing your symptoms with an orthopedic specialist can help you understand whether knee replacement or another treatment may be appropriate for you.
