Baybreeze,
i had 2 fusion surgeries and one of the diagnoses was Spinal stenosis (like everybody else after age 25).
I had surgeries done and MRI was 6 month later - spinal stenosis still was diagnosed right on operated areas. Dr said that they worked on this area, but due to us aging, moving, having surgeries (more surgeries we have, more damage and arthrities we get in there) we get same things again: DDD, stenosis, arhrities, etc.
I had my first surgery after a big car accident so all the above problems were least of my concern. I wouldn't just go and have fusion just because of the stenosis or DDD.
My mom has severe spinal stenosis since she was 35, I am talking severe. She also has arthrities, DDD - everything comes with territory.

She never went for surgery even though many spinal specialists insisted her to do so.
Guess what? I had 2 fusion surgeries, I am in 51 and mom in her 74 is doing so much better than I do. Yes, she leaves in severe pain, she is constantly on PK for many-many years. She refused any shots, surgeries - she is walking still (I hardly), she can seat (I can't do it for prolong time), she can even bend and lift, with pain of course - I can't even dream about it. Go figure...