NEUROSURGERY ARTICLES
EXTREME LATERAL INTERBODY FUSION
by Burak Ozgur, M.D.
Spinal surgery has come a long way. Not only have techniques
improved, but our ability to diagnose and treat spinal disorders has
evolved tremendously over the years.
The spectrum of treatment
options varies from decompression and fusion to the use of artificial
discs and resorbable materials. Additionally, surgical corridors have
evolved as well. We are now able to perform some of the same
operations we would normally have done through smaller and less
invasive incisions. This amounts to less blood loss, less postoperative
pain, and shorter hospital stays.
One of these techniques is called the XLIF (extreme lateral interbody
fusion). It is basically a technique in which we access the lumbar
spine from a completely lateral approach (from the side). The main
benefit in this approach is that this spares the patient from potentially
having to have an approach through the abdomen which could run
the risk of various complications. Additionally, this technique minimizes
the disruption of muscles and other soft tissue and thus relates
to less blood loss and postoperative pain. We find that following this
operation, patients require less pain medication and are generally
able to get out of bed, walk, and go home sooner than with the traditional
abdominal approach.
The technique basically begins with the patient positioned on their
side in the operating room. Then using intraoperative imaging and
electrophysiologic monitoring, we are able to position a retractor
which essentially opens a window for our operative corridor. Then a
discectomy is performed in which disc material is removed. A graft
or cage device is then positioned in place of the disc. Lastly, either
a plate is positioned from the side or the patient is turned onto their
abdomen and pedicle screws are placed in the back in order to hold
the construct firmly in place.
This XLIF procedure can be performed
in a single level or multiple
levels depending on the patient's
extent of spinal disease. We have
found this technique to be a good
tool in the spine surgeon's armamentarium
to treat spinal disease.
The XLIF is not right for everyone.
However given the right indications,
we have found it to significantly
improve patient's outcomes both in
patient's self evaluations and surgeon's
evaluations of postoperative
recovery and functional outcome.