My dad has very similar issues to yours, though with tons of procedures and physical therapy over the years he's doing a lot better at the moment. Frustrating, isn't it? Especially trying to explain it to others who don't happen to have/know anyone with that exact combination of difficulties. Dad's always gotten a
DAS for his, though we haven't been in a while and he may not need one next time now that he's improving. I don't know about you, but for Dad a rollator or manual wheelchair are a flat NOPE! Both put immense pressure, instantly, on the exact damaged spot in his lower back. He did use an
ECV when he was at his worst, but it was a constant dance of him driving it for awhile, parking it for awhile to walk, someone else in the party driving it for awhile because he couldn't tolerate sitting back down....so tough to figure out how best to manage. Good luck to you! OP, sorry for the hijack. I hope some of this helps...