I think you will gradually feel better, the more weight you lose.  But the arthritic damage is already done,  and you can only recover just so much.  We all have to pay for our past weight gain.  The weight lose is a wonderful thing. You will feel alot better, eventually.

I have Psoriatic Arthritis (PsA) and am interested in this topic also. I current have monthly Remicaid infusions, which controls flares well for me.

I am currently planning WLS around Jan 9, so when I have post op info I will share with the group. For now, what my rheumy has told me is I need to be off the Remicaid for 1 month pre-op and my be cleared my my surgeon to resume. 

I am hoping to notice a difference soon, only 1 week out from surgery.

HI LINDA MY VITAMIN D LEVEL WAS 14 AND SHOULD BE 30. I'M NOW TAKING 50, 000 RX IN VITAMIN D. I HAVE TO TAKE IT FOR 12 WEEKS. I HAVE TO GET THE CORRECT VITAMINS. THANKS FOR THE RESPONSE

I have ankylosing spondylitis and I've been on Humira, flexeral, etc. prior to my surgery.  I came off everything before the surgery and it wasn't easy on my body but I knew this surgery would help me tremendously with my pain.  The stuff they gave me while in the hospital and to take while I was home did wonders.  Right now I'm on nothing and just from dropping 50 lbs it's amazing how my joints feel.  I have days where it hurts more but overall I'm ok.  If the flare-ups get out of control I'll be back in to see the doc though.

I don't know if this helps but I can relate to it.