I had avm surgery and an L5S1 laminectomy in 2003 which resulted in cauda equina syndrome. I had bladder issues which resolved after 8 months.
For the first year after surgery i was walking up to 1 mile a day as well as using the recumbent bicycle for 30minutes at a time. As i increased my activity, i began experiencing flare-ups( acheing pain in and around my tailbone and buttocks) I also had these flare ups if i did too much house work. I now have eliminated most walking and bicycle exercise and instead have switched to Nautilus machine exercise. At this point cardio is not right for me. I woul;d advise you to take it very slow. I would suggest lots of stretching, house work, climbing stairs if possible and walking for the first 6 months. You alsio might want to keep a journal of your daily physical