I had a cortisone injection in my knee on Friday and it is like a miracle! I am walking almost normally and the pain is reduced by 90%. I am now afraid this wont last.I have severe osteoarthritis after the removal of my medial meniscus 25 years ago. I am taking Mobic 15 mg per day, which I hope will now be more effective since the inflammation seems to have calmed. I was at about the end of my rope pain-wise, so I am so happy this has worked. I just hope it lasts for a long time?What has been everyone's experience with this?