XLIF (eXtreme Lateral Interbody Fusion)

eXtreme Lateral Interbody Fusion (XLIF) can be used to treat a number of lumbar spinal disorders, including degenerative disc disease, scoliosis, low grade spondylolisthesis, deformities of the spine, recurring lumbar disc herniations and thoracic disc herniation.

XLIF is a minimally invasive procedure that requires a single small incision through which instruments can be inserted. It reduces the complications, risks and recovery time required for back surgery.

What happens during an XLIF procedure?

You will be positioned on your side for the XLIF as your surgeon will go through your side to operate rather than your front or back. After taking x-rays to determine which disc(s) needs to be removed, your surgeon will make a small incision in the lower back region of your trunk. A second small incision will be made on your side. An instrument known as a dilator will be inserted and once it is positioned over the disc, a probe is inserted to gently move the psoas muscle aside. Once the spine is accessed, the disc will be removed and your surgeon will insert an implant in its place. This can be a spacer or a graft of bone, which will eventually allow the two vertebrae to heal together as a single unit. If needed, screws, plates or rods may be installed to provide added stability. The entire procedure takes about an hour to complete.

What can I expect after surgery?

Many patients experience a noticeable reduction in leg pain following surgery. Any pain related to the actual surgery is normal and you should heal in a week or so. Because the muscles are moved and not cut, you should be able to get up and walk around after surgery. An oral pain medication should help you cope with any discomfort.

Because XLIF is minimally invasive, you may be able to go home the same as your surgery. However, your doctor may recommend a longer stay, anywhere from a few days to a week depending on your condition.

Complications and risks can include pain after surgery, infection, some mild muscle weakness and a failure of the bones to properly fuse, but in most cases these risks and complications are rare or minimal.