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Knee replacement FAQs

Have more questions about getting a knee replacement? Here’s everything you need to know.

Most knee replacements treat long-term pain and discomfort caused by knee osteoarthritis. Arthritis causes the bones, cartilage, and other supportive tissue to wear away, causing stiffness and pain in your knee joint.

Less often, a knee replacement might be recommended after a severe injury or gout.

Knee replacements often last more than 20 years. One Harvard study found just over 10% of knee replacements needed additional surgery after 20 years. By comparison, 3.9% needed an additional procedure within 10 years.

The amount of time your knee replacement takes depends on whether you have a partial or total knee replacement. A partial knee replacement typically takes around an hour, while a total knee replacement can take one to three hours.

Knee replacement surgery is a very common procedure with a low-risk profile. Most patients don’t experience any serious side effects.

However, there are some risks to note, including:

  • Ongoing stiffness and pain in your knee.
  • Infection at the surgical site.
  • Blood clots in your legs (this can be dangerous if left untreated).

To minimise these risks, it’s important to follow the aftercare advice of your surgical team.

It can take a few months to recover from a knee replacement surgery. You’ll need to use crutches for around six weeks and stay off work for around six to 12 weeks, depending on how you feel and the nature of your job.

Private knee replacement costs

Flexible Payment Options to Suit You

Payment Plans

Spread the cost of your medical treatment over several months with our finance options and medical payment plans. This is ideal for patients seeking the speed and comfort of private healthcare without significant upfront payments.


Use our self-payment options to get prompt care with the consultant of your choice. Patients looking for fast, efficient treatment without private health insurance are welcome to pay for treatment before their procedure.

Private Medical Insurance

We welcome patients with private medical insurance from approved insurers, including Bupa, AXA, Aviva, and many more. Find out how to claim for your treatment with private health insurance to get optimum care and comfort.

Private medial insurance we accept

Learn more about knee replacement surgery

Find out more about the knee replacement procedure below.

After a knee replacement, you should avoid:

  • Sitting with your legs crossed for six weeks.
  • Heavy lifting for at least three months.
  • Sleeping with a pillow under your legs.
  • Kneeling on your repaired knee.
  • Standing up for long periods of time.

Certain activities are also not recommended even after you’ve made a full recovery. This includes all contact sports (such as rugby and football) as well as skiing and long-distance running.

Most patients can walk without crutches around 5-6 weeks after knee replacement, though building up the muscle around your knee may take longer. Physiotherapy can help you build strength and get you back to walking normally as quickly as possible.

Yes, but you’ll need to wait at least eight weeks after your knee replacement before you can drive again. Your surgical team will let you know when it’s safe for you to drive.

You should also tell your car insurance provider you’ve had knee replacement surgery to confirm your insurance is still valid.

Follow your medical team’s aftercare advice carefully and do any exercises as prescribed. This will increase your flexibility and mobility as quickly as possible. Attend all your follow-up appointments for regular reviews.

Eating a healthy diet, getting plenty of sleep, and drinking lots of water to maintain good general health while you recover is also a good idea.

Knee osteotomy may delay your need for a knee replacement if you seek treatment soon enough. A knee osteotomy repairs your original knee joint by reshaping the bone around it. 

Seeking treatment sooner may mean you can have less invasive corrective knee procedures. Speak to a Harley Street Specialist Hospital consultant to determine which treatments suit you.

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