The improvement that I've had after the surgery has been fantastic (Thanks to Mr King at Salford Royal). The most important advice, both pre and post surgery, has been to take care to pace myself. I've had to learn a lot more patience
Keeping active, within reasonable limits has helped me greatly, as has some yoga, with an instructor who understands degenerative conditions and injuries has been very worthwhile for me.
I hope this helps... If you have more specific questions, I'm willing to share some of my experiences.

