When your doctor told you "this rarely happens...just my luck", was he indicating to you that these changes have happened since your surgery? How does this report differ from the one prior to surgery? I am curious because it appears that much of the problems mentioned are things that take awhile to develop.
The following is an art major's explanation!!!
Disc dessication is when the disc atropies and loses height. This happens eventually to all of us as we age. You have this at L3-4, but you do not have significant narrowing.
At L4-5 there is more disc dessication in addition to a bulge in the disc and also facet arthritis...there may be some little bony growths on the facet joint. These two conditions are causing the space in the central canal to narrow.
L5-S1 notes are what I don't really understand. There is stuff coming out of the disc and either it has formed into fragments, or there are other fragments (maybe pieces of bony growth or something) which measures 10 mm -- this is hanging into the central canal, causing pressure on the S1 and S2 nerve roots.
Do you have any pain traveling down your leg, into your foot, or pain on the bottom of your foot?
Hope my layman's explanation makes some sense to you!! I do not know how the doctor would want to proceed....