I am a physiotherapist and I had deal with post tkr patients it is usually need replacements are done for the patients above 50 years of age because the life span of joint replacement last from 10 to 15 years so it all depends upon how accurately you use the artificial joint to accomplish your ideal activities so I would suggest running after total replacement is not much recommended as as it increase the wear and tear of the cushioning between the two implants

Total Knee replacement is usually done for elderly patients who are not able to walk because of pain.  This surgery is aimed at better quality of life. Running Depends on the patient age and their overall fitness 

Dr Rufus Vasanth Raj

running bit difficult,  u can do brisk walk

Knee replacement surgery is major surgery and you will not be able to run for at least 6-8 weeks after the surgery. You will need to start with physical therapy to help you regain range of motion and strength in your leg. Once you are able to walk without pain and have good range of motion, you may be able to start running again.

Definitely...

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