VAX-D Results

Vertebral axial decompression therapy is a verywith walking, but more particularly, by lying down,
useful tool for people who have horrible backwhich unloads the spine and reduces intradiscal
problems because it is relatively inexpensive and itpressure. The causes of mechanical low back pain
does not involve surgery. Data was collected frommay include degenerative disc disease, degenerative
twenty-two medical centers for patients whospondylosis with limitation of range of motion, facet
received VAX-D therapy for low back pain, whicharthropathy, relative lateral recess stenosis from a
was sometimes accompanied by referred leg pain.combination of the above, microenvironment presure
Only patients who received at least ten sessions andchanges affecting the thecal and epidural space from
had a diagnosis of herniated disc, degenerative disc,disc bulging, subligamentous and/or extruded
or facet syndrome, which were confirmed byherniation, and segmental instability.
diagnostic imaging, were included in this study.A number of potential mechanisms are specifically
The data contained the patients' quantitativeaddressed by the lumbar vertebral body separation
assessments of their own pain, mobility, and ability toachieved during therapy. With aging, disc desicction
carry out the usual 'activities of daily living'. Theoccurs, disc height is lost, and this process is
treatment was successful in 71% of the 778 cases,accelerated with activities which produce high physical
when success was defined as a reduction in pain to 0loading of the lumbar spine. Osteophytes develop
or 1, on a 0 to 5 scale. Improvements in mobility andalong the anterolateral and posterior border of the
activities of daily living correlated strongly with painvertebral bodies, and facet arthropathy increases as
reduction. The causes of back pain and theirdegenerative disc change advances . Normal vertebral
relationship to this therapy are also discussed.body separation is lost as the disc degenerates. blood
Although imaging procedures, including CT and MRI,supply to the nerve roots of the cauda equina is
are able to accurately define structural pathology, thesensitive to compression. Even at pressures of only
correlation of these anatomic findings with5-10 mmHg, the flow in over 20% of the venules
physiology, back pain, and other clinical complaints iswas completely stopped. Flow in all the capillaries
imprecise. Although surgical decompression, epiduralstopped at pressures between 20 and 50 mmHg. A
blocks, and spinal instrumentation can sometimes helppressure of 30 mmHg is slightly less than one pound
patients suffering from back pain, these treatmentsper square inch, so solute transport is easily reduced.
do not completely take the biomechanical function ofEven vertebral distractions of 1 or 2 mm per disc
the disc into account, and may leave patientswould reduce ligamental redundancy and help to
unrelieved of their suffering.restore canal/foraminal patency, reduce venous
Low back pain is aggravated by activities thatcongestion and increase axoplasmic flow.
increase axial loading on the spine, such as sitting,For greater resources on Vax-D and especially about
standing, and lifting. Patients may describe some reliefspine or even about Lumbar please visit these links.