My mother has had her Total Knee Arthroplasty one n half month ago and she also suffered from joint swelling and pain through out her recovery. There is a possibility of delayed infection of the joint. For that you need to talk to your doctor and ask him to get your knee X - ray, and a sample of the fluid from your knee for culture and sensitivity. Secondly, Your blood should be checked for CBC, ESR and C reactive proteins so that it could be ascertained if you have an infection of the joint In this case you will be given antibiotics both orally and I/v. You also need to know the cause of your joint destruction. Whether, it was osteoarthritis or Rheumatoid arthritis. Because if it is Rheumatoid Arthritis than there is a chance that there is a flare up of your Rheumatoid Arthritis and you should be treated for that. Hope this might give you some idea of disease and what needs to be done.
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