The spinal cord is bathed in CSF throughout its length. When we look at the cord on an MRI, we look for the CSF to completely surround it. If something has pushed all the CSF out of the way at certain points in the spine, it could compress the cord which could lead to neurological problems. Please keep in mind that it's impossible to accurately comment on a secondhand MRI report as we always base major clinical decisions on a personal review of the films. From what you report, it sounds moderately severe and you may want to consider getting it reviewed by a neurosurgeon. Depending on the actual degree of cord/nerve root compromise as well as clinical symptoms, it's possible that you could have permanent damage if no intervention is done. Sounds like you've tried extensive conservative measures without significant relief, so I'm not sure what else is left. Finally, every patient is different, and it's difficult to predict what one person's recovery will be. But usually if the postop course is uncomplicated and everything looks good at the post-op check at 4-6 weeks, then you should theoretically return to baseline status. GOod luck.