Do you struggle with anything off the bike?, riding doesn’t aggregate it to muchI had burst fracture of L2, scaffolding in there now. Was back on bike after a few months. Then it hurt over every bump. Was too soon really. No issues at all now.
Best advise would be to concentrate on core strength exercises. Haven't done any for a long time now but I started doing superman push ups a couple months after the op. First one hurt like hell, but after a while built up strength and ended up at 60
Do you find riding the bike the easy part?, I know for me it is, intrigued as having work problemsI had an almost full fusion from C6 down when I was 16 ( a bloody long while ago) with 3 Harrington rods for good measure. I've done core exercises, stretches and a variety of resistance work almost daily from before 'the Core' was a thing - it can be onerous but I look at it as small price to pay to be able to be mobile enough to work from 17 years and ride motorbikes from a year later. I'm as creaky as hell now but I can still ride across Europe which I put down to the regular exercise