Re: How many Micro D's can you have on one disc.
It's really not a matter of how many discectomies can you have if you have had a laminectomy...because a discectomy removes part of the disc and a laminectomy removes the laminae, which are bony segments that help form the arch across the back of the vertebra. A hemilaminectomy removes one of these segments. It is done to make more room for the nerve so it is no longer badly irritated or compressed.
If this is done too many times, it makes the back unstable at this segment where bone is being removed, and a fusion is necessary.
The general rule of thumb, at least in the US, is that the surgeon will perform a discectomy two times. If it herniates again, a fusion becomes necessary.