Skip to main content

How long do Knee Implants last?

Have you or your loved one been advised to undergo knee replacement?

But are worried how long the replaced knees or the implants would last, especially if you are under 60.

You are not alone in your concern.

Most of the patients who need knee replacement are worried, or rather scared of the surgery and its outcomes.

Most of them have this concern about the longevity of knee implants or this question on the top of their mind- “ How long would the knee implants last”?

Here’s a look at few statistics which are worth your attention:

  • Knee implants or replacement of knee joint is the most commonly performed joint replacement surgeries. 
  • More than 600,000 knee replacements are done each year in the United States alone.
  • More than 90 percent of people who have knee replacement are relieved of knee pain
  • Most of these people are able to perform daily activities and stay active which they were unable to do before the surgery
  • In many cases, people are able to resume activities like golf and walking which they had given up years ago because of knee arthritis
  • Complications are rare; and major complications, such as knee joint infection, are reported only in little less than 2 percent of patients
  • 90% of the knee replacement still work after 10 years
  • 80% of knee replacements work even after 20 years
  • Because of increasing obese and aging population, demand for joint replacement is on an ever rise and is expected to cross 3 million by 2030

Experts agree that knee replacement is one of the most successful and safest medical procedures in recent times.

Here’s some important information about Knee Replacement and the Implants

  • Knee replacement is the most effective treatment for conditions like severe knee arthritis, osteonecrosis or knee injuries that make weight bearing on the knee joint unbearable making it extremely difficult for the person to perform even day to day activities. 
  • Knee replacement is done to improve the condition and give more decades of functioning to the knee joint.
  • It is a surgical procedure in which only the worn out part (partial knee replacement) or the whole of the knee joint (total knee replacement) is replaced with an artificially made implant.  

Knee Implants
  • Knee implants are generally made of metal (titanium or cobalt-chromium based alloys) or ceramic and plastic (polyethylene).
  • Some of the recent studies on long-term outcomes of knee implants have found that the implants function well even after 15-20
  • More than 90% of the knee implants last for more than 10 years while 80-85% are good even after 20+ years of the surgery. The numbers are improving with improving technology. 
  • The longevity of the knee implant varies from patient to patient and typically depends upon the physical condition, physical activity and weight of the patient. In addition to this, the skill of surgeon in placing the implant also plays a significant role in the life of the implant
  • Practically speaking, knee implant has a high success rate and is considered a safe and effective way to regain knee functionality in terms of routine activities like walking, standing etc.
  • Activities like jogging, sports, and other strenuous activities should be considered only after a consultation with the surgeon. 

Reasons for Implant Failure

An artificial knee is bound to eventually wear off. The worn out components of the implant can loosen from the bone and cause pain and decreased joint functionality. Loosening is a major reason for the failure of an implant that can be resolved by a revision surgery. 

In addition to loosening, any serious complication or younger implant recipients may also require revision surgery. 

Revision Knee Replacement

Revision Knee replacement is the surgery to replace the old and worn out components of the implant with the new implant. About 1 person in 10 may need revision knee replacement surgery after 10 years.

Patients who have had a partial knee replacement or are overweight or are involved in heavy manual or weight lifting work are more likely to undergo revision knee replacement surgery. 

These conditions fasten the wear and tear of the implant. Just like the rubber of the car tyre wears off if the car is used a lot, the implant also wears off if used more than its capacity. 

Average Age for Knee Replacement

There is no absolute or advisable age to undergo knee replacement. Patients who undergo knee replacement are usually between 50 to 80 years of age. However, the orthopedic surgeons evaluate the patient on the basis of his/ her medical condition and advise knee replacement based on that irrespective of the age of the patient.  

Time Taken to Perform Knee Replacement

Standard Knee replacement usually takes around two hours for one knee.

Recovery after Knee Replacement

With modern technology and techniques in performing the joint replacement, recovery is fairly quick. Recovery varies from patient to patient and depends on your medical condition before the surgery and any other medical problems that you may have. You would be made to walk a few steps with support the next day of the surgery itself.

It may take anywhere from six to eight weeks before you start walking without support and around 20-24 weeks before you regain full strength and start doing high impact activities.

Cost of Knee replacement without Insurance

If you are staying in a country like the United States, the cost of knee replacement without insurance can be huge. It can cost anywhere between US $ 30,000 to $40,000 for total knee replacement.

Cost of Knee Replacement outside United States

The cost of knee replacement varies a lot from one country to another. The cost of knee replacement in the US without insurance varies from US$ 30,000 to 40,000.  There is a huge difference in the cost if you travel to countries like India where the cost of knee replacement for a single knee is around US $ 5000.

Medical Tourism for Affordable Knee Replacement

Medical tourism to countries like India where the cost of knee replacement is much affordable is one of the ways you can afford quality knee replacement without spending your lifetime savings. The surgeons are board certified, cost much affordable, hospitals JCI accredited and language, not a barrier.

IndiCure is the most renowned provider for medical treatment in India. We have on our panel few of the best orthopedic surgeons in India who operate at state of the art hospitals and

For more information, you can write to us at or call us at +91 93200 36777 or +1 877 270 2448 (US Toll Free) or talk to us at Skype @ Indicure