If you are having something like a micro-discectomy or mini-laminectomy, there will be some limitations at first but as you get stronger, there are normally not too many limits.
If you are having full laminectomy with fixation hardware (fusion), then yes you will have limitations for the rest of your life.
If you have the option of having artificial disc replacement, it is a better alternative simply because after healing, you are not limited to anything but yourself. As long as the procedure is perfect.
Mine went excellent but it did not fix all of the problems and so I am still disabled and need more work done.
Good luck and let us know which way you go.
Brian