Bones, joints, and muscles
Sciatica: what causes it and how to treat it effectively
By Robert V. Duvall, DPT, MPT, ATC, MGFI
www.losethebackpain.com
If you're reading this article, it's a good bet that you have a
radiating pain running down the back of your leg that just won't go
away. If what I'm about to tell you sounds familiar, don't worry, help
is on the way.
I guarantee you that what you are about to read will likely be far
different than what you have read or heard anywhere else!
First, let me tell you why today's traditional treatment methods for
sciatic nerve pain just flat out miss the boat. The medical community
is often times so conditioned and focused on treating only the symptoms
that they fail to address the cause of the problem. That is why I wrote
this article, the more educated you are about your body, the more likely
you are to get the best results and the fastest relief.
To get rid of your sciatica once and for all, you must first know what
is causing your pain. There are four primary conditions that can cause
sciatica. But, just knowing your condition is not enough, you need to
dig down one more level of reasoning and that is to find out why you
now have one or more of the four conditions.
As you read on, you will note a common theme. That common theme is
the key to your success for quick and lasting relief.
Piriformis syndrome
The most common cause of sciatic pain is created when pressure is
placed on the sciatic nerve by the piriformis muscle. Muscle imbalances
ull the hip joints and pelvis out of place and this changes the positioning
of the piriformis muscle, which then places pressure on the sciatic nerve.
Simple right? So, if you believe that, than I ask you what good does
treating the symptoms do to get lasting pain relief? In my opinion, none,
and most likely that is all you have done. Just one more quick question
did any of your health care providers check you for muscle imbalances? If
not, the help I promised is here.
Through defining Piriformis Syndrome, we have identified the first
mention of muscle imbalances and what I believe to be the root cause of
Sciatica.
What the heck is a muscle imbalance anyway?
When one muscle overpowers the opposing muscle or when there is a difference
in flexibility of opposing muscles or a combination strength and flexibility, a
patient is said to have a muscle imbalance.
Think Tug-of-War.
When your muscles are out of balance, they pull your bones and joints out
of their normal position and this places your muscles, bones, and joints under
constant stress and uneven pressure.
For example, the proper position of your hips and curvature of your spine
are determined by numerous muscles and whether these are balanced. There are
over 640 muscles in the human body, and everything we do affects them, from
sitting too much to playing the sports we love, and if just one of these muscles
is out of balance, you're in trouble.
Let move on to the other three conditions and let me show you more of the
common theme.
Herniated discs
Pressure caused by a herniated or bulging disc
can cause sciatica. A herniation is when a disc protrudes from between the
vertebrae and this can either be caused by an event like a car accident or by
months or years of uneven pressure due to muscle imbalances. This can sometimes
cause sciatic pain, but it is also important to note that many people with
herniated discs don't even experience pain or symptoms and many don't know
they have the condition.
Strange but true, I believe that is has to do with the degree and extent
of their imbalances.
Spinal stenosis
Pressure caused by Spinal Stenosis, which is a narrowing of the space within
the spinal canal. If you have sciatica from spinal stenosis, there is a
good bet that your muscle imbalances are pulling your hip and spine into an
abnormal position causing the contact which cause the pressure.
Isthmic spondylolisthesis
Pressure caused by Isthmic Spondylolisthesis, which is simply when a vertebrae
slips or moves, can sometimes pinch the sciatic nerve but often times people
who have this condition don't have any sciatic pain, symptoms, or even know they
have it!
As you can see, there is a trend here...
In nearly every case of sciatica, muscle imbalances are the primary cause
of the pressure being placed on the sciatic nerve.
But how do muscle imbalances develop? They develop as the result of either a
traumatic event, through a long process of lifestyle choices, or through a
combination of both.
The event scenario is most likely the catalyst for sudden onset of sciatic
pain. So what happens? When there is undue stress on the piriformis muscle,
that stress causes the muscle to go into spasm: you have pain due to the piriformis
muscle's putting pressure on the sciatic nerve.
In most cases, people go to physical therapy or minimize their physical
activity to break the pain-spasm cycle and in most cases, their symptoms subside.
However, the event will also set them up for a lifetime of sciatic pain if the
piriformis muscle does not recover 100 percent in both strength and flexibility.
When you have an injury to a muscle, both strength and flexibility are
compromised. If your recovery ends (meaning your effort) before strength and
flexibility return, you may never be 100 percent again and will likely struggle
with the problem throughout your life.
Lifestyle and habits influence the way sciatic pain creeps into your life, and
that is what we like to call the process. The process can be described as a
prolonged onset of symptoms based on your everyday activities.
However, from a technical standpoint, the process really describes the
development of the muscle imbalance in your hip. The piriformis muscle is
responsible for external rotation (moving your leg so your feet point outward).
So over time, that muscle gets tight from the positions you put yourself in and
it weakens from lack of use.
Let me give you some examples of what I mean:
- If you sit on the edge of your chair with your legs separated and your
feet pointing outward you are keeping your piriformis muscle in a shortened
position. That's how it gets tight, and with extended sitting in that position,
it gets weak form lack of use. Hence the imbalance!
- Another example are the runners and bikers who actually work very hard; they
tend to get sciatica because they fail to keep a strength vs. stretch balance in
their workouts. The imbalance creates a greater pull toward external rotation
and the result is a tight piriformis and an irritated sciatic nerve that causes
pain.
These are just two examples of how muscle imbalances can affect the piriformis
muscle and cause sciatic pain. You may not be a runner or cyclist, but I'll bet
you have muscle imbalances that are causing your sciatic pain!
So how do you get rid of your sciatic pain?
If you are not sure which one of the four conditions is causing your sciatica,
I recommend you start with the basics. Most cases of sciatic pain are caused by
muscle imbalances, so if you begin to work on correcting any muscle imbalances
you have, you should start to see improvement right away and will likely eliminate
your sciatic pain in a few weeks or less!
Will learning one new stretch be enough? It very well may be. However, depending
on the severity of your condition, you may need to change your daily activities to
include new stretches — new exercises that include the use of the hip rotators
(e.g. inline skating, basketball, tennis, etc.) and even better, specific exercise
intended to correct your imbalances appropriate for your situation.
As always, learn as much as you can about your condition so that you can put
the tough questions to your healthcare providers and get the best care possible.
For more information on sciatica and how to treat it effectively, read the latest
Sciatica
Advisory from The Healthy Back Institute.
About the Author:
Dr. Robert V. Duvall, DPT, MPT, ATC, MGFI, graduated from Shenandoah
University's Program in Physical Therapy with a Master of Physical Therapy
degree in 1998. He recently received his Doctorate of Physical Therapy degree
from the Physical Therapy Program at Shenandoah University in December 2004.
For more information on herniated discs and how to treat them effectively,
read the latest Back Pain Advisory from The Healthy Back Institute. Visit
www.losethebackpain.com
to sign up for your free back pain e-mail educational course.