Spinal Cord Stimulation
What is Spinal Cord Stimulation?
It is a therapy that uses electrical impulses to block pain from being
perceived in the brain. Instead of pain, the patient feels a more pleasant
tingling sensation.
Who is a good candidate for a Spinal Cord Stimulator?
Doctors will generally consider the following:
- Conservative treatments have been tried and failed.
- Treatment is most effective when pain is in one or both arms or legs,
or for low back pain that persists after surgery.
- Further surgery is not likely to help.
- The patient has no untreated drug addictions.
- The patient has had a psychological evaluation.
- The patient does not have a pacemaker or other contraindications.
- The patient has had a successful SCS trial.
- The patient is willing to play an active role in establishing and
maintaining increased quality of life.
The Trial
After you and your physician discuss the SCS and determine that you
would like to proceed, a trial will be arranged to learn if it will
be effective in treating your pain. The trial involves a surgical procedure
to implant a temporary stimulator to determine if the area of your pain
will be covered by stimulation. The trial may last a minimum or 24 hours
or as long as several weeks. You will want to be certain that you have
satisfactory pain control and that you are comfortable with the sensations
of stimulation. If the trial is successful, the permanent stimulator
implantation will be scheduled.
Implantation: The Surgical Procedure
The procedure will take place in a sterile environment or in the operating
room. You will be given a local anesthetic so that you can be awake
during the procedure (with minimal discomfort) in order to give feedback
to the physician regarding effective lead placement.
After the local anesthetic has time to numb the area where the lead
will be placed, the lead is inserted near your spinal cord through a needle
or through an incision. Once the lead is in place, your physician will
activate the system. You will help the physician determine how well the
stimulation pattern covers your pain pattern. You will also get a sense
of how stimulation feels to help determine if it is right for you.
Before Implantation
Do not eat or drink for 8 hours before the surgery. Specific instructions
will be given by the person who schedules the procedure.
After Implantation
As with any surgery, you will have some discomfort at the incision
sites, and there will be some swelling which usually lasts for several
days. There will be some discomfort over the area where the receiver
is implanted. This is normal. Your doctor may prescribe an analgesic
until this subsides.
Immediately following implantation, you should avoid lifting, bending,
stretching, and twisting. Light exercise, such as walking is important
to build strength and to help relieve pain.
Long Term Care
Leads can remain permanently in place. However, if you engage in extreme
bending, stretching, twisting, or strenuous activity such as jumping
exercises and diving, etc., the leads may move or become damaged and
require surgical repositioning or removal. Moving or lifting heavy objects
can move or break the leads. Sometimes leads will move as a result of
normal bending, stretching, or twisting, or due to your unique physical
structure. Check with your doctor before performing any strenuous activity.
Things to Keep in Mind:
Do not drive a motor vehicle or heavy equipment while using the stimulator.
You may use it if you are a passenger.
The stimulator will set off metal detectors (such as at airports). You
will want to be sure you have your SCS identification card in order to
pass through.
Department store theft detectors may cause an increase or decrease in
stimulation as you pass through. This is temporary and will not harm you
or the stimulator, however, you may wish to turn the stimulator off before
passing through.
Anything with magnets can affect your stimulator, in addition to theft
detectors and metal detectors, be mindful of large stereo speakers with
magnets, high voltage power lines, electric arc welding equipment, electric
sub-stations and power generators. Magnets can turn an internally powered
generator (IPG) on or off. You will want to avoid MRIs as they can damage
the stimulator.
Normal household equipment will not harm or interfere with the stimulator.
This includes cellular or portable phones, microwaves, computers, TVs,
appliances, electric blankets, and heating pads.
The stimulator control magnet may cause damage to certain items or erase
information on items with magnetic strips (bank or credit cards), Magnetic
media (video cassette tapes, computer diskettes, cassette tapes), home
electronic items (computer, VCR, television, camera). The magnet will
stop watches and clocks, so you will want to store the magnet at least
two inches away.
Life of batteries depends upon stimulation settings and usage. External
batteries last anywhere from several hours to several days. When the battery
of an implanted pulse generator is depleted, you may need surgery to replace
the IPG.
Report to your doctor's nurse changes in stimulation patterns, increase
in pain, or unexplained increased / decreased stimulation.
Will I be pain free?
There will be residual discomfort. Most patients report that 50%- 70%
decrease in pain. The goal is to lower the level of pain and make it
more manageable.
How will a spinal cord stimulator help me?
Depending upon your work, you should be able to resume work at home
or job that does not require strenuous physical activity.
- You can resume sexual activity.
- You can travel, keeping in mind that sitting for long periods of time
is best avoided.
- You will be able to participate in recreational activities such as
walking, fishing, and gardening.
- You will feel more in control of your attitude, and should notice
a positive effect upon relationships.
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