I’ve had back surgery for scoliosis when I was 16, so i started doing deadlifts last year at the age of 41.
My back has never felt better, deadlifts have actually made it feel stronger and more stable than ever.
I have no choice but to have a straight back when I do them, so my form is automatic.
I’m pulling 290 lbs. right now, I think I might stop at 350 or so and just go for reps after that, I’m not sure how my back will react to going past that, but it sure as hell has helped my back so far.