I had a laminectomy operation (and other decompression measures) in 2006. I was left with poor mobility and ever present neuropathic pain, which is pretty well what I had before the operation. I can't comment on the detail of your MRI report, needs someone with real professional/technical knowledge IMO. But I did share in some measure the confusing, and sometimes sketchy, reports I was given after the operation.

At the time the partial and inconsistent information was confusing and somewhat scary, leading to a degree of paranoia for me. After 18 months seeing various specialists I did manage to extract a sort of diagnosis (myelomalacia = softening of the spinal cord). Reflecting on it afterwards (I've had plenty of time!) my best guestimate is that the root problem for doctors may be that conditions of this sort are really difficult to identify precisely, leading to different responses at different times.

Sorry if this isn't very helpful or optimistic, but it is my experience as best I can interpret it.