How long does a knee replacement last:

The surgeries for knee replacements have been happening for over thirty years now. With the passing decades and enhancements of the surgical techniques and tools the replaced knee life span has also inclined from ten years to twenty years.

The synthetic knee design and material have noteworthy effects on the patient’s expectations. With the lesser life span of the synthetic knees, the knees were kept for the elderly people to relive the pain. However, with the advancements and increased life spans of the replaced knee, the younger people are also more into the surgical procedures to cut the endeavoring knee pain and to live the normal and pain relived life. FDA also encourages knee replacement with a pressing life span of thirty years.

How long does a knee replacement last?

It depends on the replacement which the person has taken. For 80-90 percent of people who went through surgical procedure for total replacement of the knee; their knee might hold well for the good twenty years which might be slightly increased as per the conditions and usage.


The people with fractional knee replacements, the knee might hold less than the total replaced knee. One out of every tenth person has to go through another partial knee surgery after every ten years. The person might have to receive the surgical help than the expected time period if that person is involved in more weight-bearing activities over the years of the first surgery.

This surgery is known as revised surgery, which is often is more crucial and difficult than the first surgery. The surgeons seldom suggest using high end and good-quality material of synthetic knee than any standard knee replacement, if the surgery is done for second, third, or even fourth time. 

Complications of knee replacing surgery:

The complications of the surgery are not very extensively repeated and everyone out of the twenty people might have to go through complications during the surgery or even after the surgery.

The main reasons for the complications might be the age of the patient and the health conditions or health history of the patient. Particularly, the adults with the least medical histories go through lesser chances of facing the knee replacements problems and complications.


The medications used during the surgery or the hospitalization time period for the patients might have slight side effects for the patients. Especially the pain relaxants or the anesthesia given to the person during the surgery might have severe side effects for the person or could become deadly if the person is highly allergic to the dose.

The knee plaster or how the knee is wrapped during the surgical procedure might become one of the complications. The knee wrapping is very important because the knee has to rest properly to avoid any sliding or joint replacement.

Therefore, the consultants and surgeons need to openly discuss the scenario for the operation like what medications they will put the patients on, how many doses of anesthesia will be given to the patient, or even how they will wrap the knee.   

Read more about “How to wrap a knee”?

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