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CA
A 25-year-old member asked:

What is the reason that natural body joints last longer than artificial joints?

2 doctor answers5 doctors weighed in
Dr. Joel McClurg
Specializes in Orthopedic Surgery
Ability for repair: The difference really comes down to wear. While the native joint has some ability to repair itself, an artificial joint doesn't. How long an artificial joint lasts is determined by many factors, but eventually comes down to plastic wear. Every single step caused wear particles to form and eventually these will cause the knee to fail. Depending on other factors that can take 5-30 years.
Dr. David Hettinger
Podiatry 37 years experience
Humans are....: We are literally a miracle of natural composition. Whenever something foreign is placed into our body it needs to react and interact with the surrounding tissues. Nothing beats our original parts. We only use artificial joints when there is no other choice available to relieve your pain. Normal joint cartilage with normal joint fluid is amlost friction free - can't beat that!

Similar questions

Australia
A member asked:

How do artificial joints stay in place and work with the human body? how long do they last?

1 doctor answer4 doctors weighed in
Dr. Jonathan Shults
25 years experience
Total Joints: It depends on the joint that was inserted. The most common are Hip and Knee. As the materials improve the longevity has also improved. Its not uncommon to get 20 years out of a well placed total joint these days. The literature says there is a 1% chance of failure for each year the joint is in. So 100% will fail at 100 years.
Last updated Sep 28, 2016

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