So just after Christmas 2010 I thought I hurt my back. One er visit, two hospital stays and several test including MRIs xrays ct scan and blood work they finally figured out I have a bacterial infection in the SI joint. After 6 weeks of intervenous antibiotics there was still fluid and inflimation present in the joint. It had decreased about half the size. Now we have stopped the antibiotics to see if the bacteria is still active by watching the white blood cell leveal and the inflimation/infection levals. So my question is if the bacteria is still active what would be the next step? What would you recommend. I know my doctors keep saying they would like to avoid surgery because of the difficulty of it but my pain doesn't appear to be getting any better even with physical therapy. What would surgery involve? What are the complications? What type of surgeon would I need? Should I get a second opinion? Any information and education would help. Thanks!