Swelling of knee HELP!!

you may have a bone chip in a location that is not visible....right between the bones... i had something like that and described exacly like u check into it

Hi Yep, a sample of the fluid was takes to the lab but nothing was found. Even did test to see whether i had RA but all turned out negative. Have been working today and again my knee is twice my "good" knee. Can't figure out what is wrong. PLease help!!!!

For the last 4 weeks I am having continuous and sometimes major swelling of my left knee. I had a proximal and distal realignment 1 year ago which was succesfull, now suddenly there's this swelling, my OS says it has nothing to do with the fact I had the TTT but he can't find the cause. I have swelling of my knee and ankle, my claf is painfull when I stand on my toes, sometimes it feels as I can't straighten out my leg (someting feels "stuck" on the back side on the knee), knee is tender to the touch, the whole knee is painfull and sore. I have develloped a limp (slight) and sometimes the knee gives out because of the swelling. I had a CTscan and a knee fluid drainage. CT showed no ACL-PCL-MCL-Meniscus damage, minor BakerCyst, lateral tracking patella, obvious intra-articular fluid. Fluid was clear of RBC-WBC-CPR was ok, no infammation, sterile. I am currently on Celebrex, no cause is known for swelling, next step is MRI or even arthroscopy. I am at my wits end. Anyone had something like this and what was it? I too work in the medical field but haven't got a clue, we tried everything and all possible causes crossed our minds and turned out -. Any ideas???? Thanks