Unfortunately, it isn't the simple spinal stenosis that he and I thought/talked about when I saw him. I will need spinal fusion as my back is unstable and there are a number of disks that have slipped and will continue to slip. If the shot doesn't last more than a couple or a few weeks, then I might have to consider surgery sooner which might blow my leaving in March. One problem is that when more than two disks are involved, the success rate of the surgery goes down (I read this and this may be the reason to try conservative treatment, first). We'll cross that bridge when we come to it. I'm looking forward to relieving pain even if it's only for a short while.
So, I'll try the shot--maybe I'll get lucky.