Knee Replacement

Replacing damaged joint surfaces with precision, using both traditional technique and robotic assistance where it helps.

How Is Knee Replacement Surgery Performed?

QUICK ANSWER

Knee replacement removes damaged bone and cartilage and replaces them with an artificial implant to restore more comfortable movement. The procedure may use conventional or robotic-assisted techniques when appropriate. Most patients begin physiotherapy early, and recovery plans are tailored after a detailed surgical evaluation.

Knee replacement is performed under general or spinal anesthesia and usually takes 45 to 90 minutes. During surgery, damaged bone and cartilage in the knee joint are carefully removed and replaced with an artificial implant, typically made of durable metal alloys and high-density polyethylene. Correct implant positioning is essential so the patient can move comfortably and without pain afterward. Alongside conventional technique, robotic-assisted surgery is also used in some cases — helping guide bone cuts and implant placement with added precision, which can support faster healing and lower the risk of complications. Most patients stay in hospital for 1 to 3 days following surgery, and a successful operation can substantially improve quality of life.

Knee Replacement

Who Is a Good Candidate for Knee Replacement?

Good candidates are typically patients with advanced osteoarthritis or rheumatoid arthritis in the knee who haven't found relief through non-surgical treatment and continue to experience significant pain and restricted movement. This especially includes patients who struggle with everyday tasks like walking or climbing stairs, and whose quality of life has been seriously affected in ways no other treatment has resolved. A detailed evaluation by a surgeon confirms whether the procedure is the right fit for each individual.

Recovery After Knee Replacement

The first 1 to 3 days after surgery are spent in hospital, where patients practice walking, sitting, standing and managing stairs under a physiotherapist's guidance. Physiotherapy strengthens the muscles around the new joint, restores mobility, and helps patients learn to use the implant correctly. Bruising and swelling are a normal part of the process and ease over time. Most patients need about 6 to 8 weeks — with consistent medication, exercise and follow-up — before returning to daily activities with less pain and better mobility. Patience and regular care make the biggest difference to a smooth recovery.

Frequently Asked Questions About Knee Replacement

For Whom Is Knee Replacement Surgery Suitable?

It's generally suitable for patients with painful, advanced osteoarthritis who haven't found relief through other treatments — especially when pain is affecting daily life, mobility is limited, and quality of life has dropped.

How Is Knee Replacement Surgery Performed?

The damaged joint surfaces are surgically removed and replaced with an implant made of metal and plastic, under general or spinal anesthesia, typically taking 45 to 90 minutes.

What Is the Recovery Process Like?

Physiotherapy in the first few weeks is key. Most patients begin walking exercises the same day as surgery, and full recovery can take 6 to 8 weeks depending on general health and the rehabilitation program.

What Are the Risks of Knee Replacement Surgery?

As with any surgery, there are some risks — infection, blood clots, implant loosening or shifting, and nerve irritation. These are uncommon and are minimized with appropriate precautions.

How Long Does Pain Last After Surgery?

Pain medication and cold therapy help manage discomfort early on, though complete relief can take a few months. Your doctor will tailor pain management and rehab recommendations to your progress.

When Can I Return to Normal Life?

Most patients resume daily activities within 6 to 8 weeks, though full recovery can take longer. High-impact sports and heavy lifting should wait until your surgeon confirms you're ready.

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