I have a massager and physio rocket (https://www.amazon.com/gp/product/B084JFX27P/) on my desk that I use daily for back pain. Always awkward to have someone come into my office because they look like adult items.
I know what you mean!
Do you have muscles issues with your spine injury, or is it just the spine itself? I have a spine issue that causes muscle spasms, and I recently got these. Seemed stupid but I have tried everything else... and they are helping me a ton. I can get the muscles to release for at least a short time, which I am hoping will allow for some healing and help stop the scar tissue.