Cervical Spinal Cord Compression and Myelopathy
Cervical Myelopathy is a pattern of symptoms that most often occur
when the spinal cord is compressed in either the cervical (neck)
or thorasic (chest) regions. The symptomology can be either acute
(rapid obvious onset) or progressive (gradual) and can be from cord
compression or from problems within the spinal cord itself.
Although the problem comes from a degenerative process in the neck,
neck pain is not usually one of the symptoms. Most often the symptoms
usually occur in the arms, hands, and legs. Weakness in the hands,
difficulty working with them is the most common symptom. The symptoms
often mimic those of Carpal Tunnel Syndrome.
Symptoms may also occur in the legs with the first usually being
the inability to run. As you get older you do not do this as often
so many times it goes unnoticed. However, as the symptoms progress,
the legs start to get stiff and jumpy. When you attempt to walk
at a quick pace, you may start to stiffen up and trip over your
own feet, and this causes you to slow down. The legs gradually weaken,
especially the thighs. As symptoms progress, the feet start to go
numb and you have to be careful how and where you walk because you
can no longer tell where you are putting your feet without looking
at them. The numbness may also move up the body to the pelvic area.
There are generally two main reasons this problem occurs, Acute
Cervical Disc Rupture, and Chronic Degeneration in the neck with
single or multiple levels of compression from osteophytes (spurs).
Some of the other causes can be tumors or vascular lesions in or
near the spinal cord, infection around the spinal cord, spinal cord
trauma, and some neurological conditions.
Diagnosis of myelopathy is most often made from two things, symptomology
and test results. The first test will most likely be simple Xrays.
Xrays will show a loss of heighth in the disc(s), the possibility
of osteophytes, and/or that the spine is not straight. The next
test will most likely be an MRI. This test produces images similar
to a CT Scan but they are generated using magnetic resonance and
computer graphics rather than with radiation. Another test that
is sometimes used is the Cervical CT Myelogram. This test involves
the injection of contrast into the cerebrospinal fluid around the
spinal cord and is followed by a CT Scan. The contrast makes it
easier to see exactly what is going on. This test is used sometimes
if the MRI does not give a definative diagnosis.
How this is treated depends on several factors; how severe your
symptoms are, what kind of symptoms you are having, the test results,
and what the physician finds on examination. If your symptoms are
not too severe and there is nothing found upon examination to show
signs of serious damage, your physician might recommend a more conservative
approach. However, if you are showing signs and symptoms of a disabling
nature it is possible that your physician will recommend surgery.
Should there be no evidence of spinal cord damage then surgery might
not be the initial course of action. If the damage appears to be
severe however, surgery might be the best option available to you.
It is possible that if the test results show the spine to be so
badly damaged that surgery would only make things worse in the long
run, you may be advised against it. However, if the images show
that the spinal cord is severely compressed, your physician may
be very concerned that your condition will deteriorate rapidly,
so in this case surgery will most likely be recommended to prevent
this from occurring.
If you need surgery there are three types of procedures that are
used in this situation. Cervical Laminectomy is where a complete
removal of one or more lamina takes place. Anterior Cervical Discectomy
and Fusion is when the disc rupture and any spurs are removed from
the front and the disc replaced with a bone graft. And Cervical
Vertebrectomy and Fusion is a similar procedure and involves the
total or subtotal removal of one or more vertebrae to accomplish
nerve/spinal cord decompression.
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