Sharp knee pain when bearing weight

[Sunk9]

I'm new here, but hope someone has an idea of what this could be. I am in my mid 50's and have had both my knees replaced. The right one was done about 14 years ago, the left one was about 7 years ago. I have had little problem with either knee since surgery. When I got up this morning I almost fell when I put weight on my left leg. The pain in my left knee was horrible. I tried working through it thinking it was just stiff from sleeping, but it has not improved. It doesn't hurt unless I put weight on it, and then it's an excruciating sharp pain on the right side of the knee only. I have never had anything like this before, even before it was replaced. Any suggestions as to what it may be?

[billysrunner]

Hi   Like you Im in my mid 50s I consulted  my Dr went for  MRI they said it looked like a torn meniscus went to my wifes dr friend and he recommended I go to this Dr excellent in the knee field Looked at my X rays and said it wasnt a torn meniscus but it was a degenerating tissue under the kneecap walking  but when I kneel on my knee I get such a burning feeling Iike you dont believe which last about 3-5 minutesRecommended therapy but said try not walking up and down sta  irs yea rightAt this present time therapy is just a waste of time and money Last alternative he told me was knee replacement He said some type of trauma happened in my past that caused this I dont know Have to see him in a week and tell him Bill

[Zak_Han]

Check your knee and try to find sensitive point,if you find it,do gentle massage yourself...
If pain constant.you would see specialist.
Take care!