 Hello friends, I am Dr. Akhilesh Rati, I am a practicing orthopedic surgeon in Dwarka and I am attached with Manipal Hospital in Dwarka. Today I will just talk about knee replacement, when is it required. So first and foremost before going for knee replacement you should have tried the usual conservative therapy which includes controlling your weight, controlling your and correcting your vitamin D levels, doing regular knee exercises, physiotherapy and some basic supplements are also available. Also you should try to give your knee the strength by doing regular walking and other cardio exercises. Plus some activity modification also helps, like avoid standing for long hours, avoid squatting, avoid using stairs. So these basic measures can help in improving the knee pain and also improving the quality of life. Also there are few supplements that are available these days which can be Odal, also other supplements like knee injections are also available which can help in preventing the knee pain and also helping curing the osteoarthritis to some extent. If despite all these conservative measures your knee pain is not improving and your x-ray is also showing significant bone and bone upgrade for osteoarthritis and your limbs are getting curved or bored then if you are having these problems and you are unable to walk for may be 15 to 13 minutes also then you should think about getting your knees changed. So if you have all these symptoms and despite all the rective measures you are not able to control your knee pain then you should think about knee replacement, thank you.