Is XLIF an appropriate treatment for lumbar degenerative disc disease?
Question: Can direct lateral spine fusion be done on a patient with previous invasive lumbar spinal fusion?
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You mean lateral lumbar interbody fusion, I guess.
In this case yes, it can be done technically and it is a minimally invasive procedure used to treat mainly degenative disc disease of lumbar column.
Sorry to bother you again, but is scar tissue an issue? I've had L4-5, L5-S1. Since this issue involves L3-4, I'm a little concerned about scar tissue interfering.
Scar tissue is not an issue.
Scar tissue isn't an issue in your case because it is located posterior ( back ) not lateral ( else the side ) of vertebral column and the L3-L4 level isn't affected by previous surgery.