SOMA Orthopedics
Medical Group Inc.
This device delivers concentrated amounts of
medication into spinal cord area allowing the
patient to decrease or eliminate the need for oral
medications. It delivers medication around the
clock, thus eliminating or minimizing breakthrough
pain and/or other symptoms. Furthermore, since the
medication in being delivered to the site of
action, much lower doses can be used and often with
less side effects.
Before proceeding with the actual implant, a series
of steps will have to be taken. First, you will
need to be evaluated by a Medical Psychologist with
experience in chronic pain management. Assuming
that your psychological profile does not
contraindicate the implant therapy, you will then
have to undergo an "intraspinal medication
trial".
This trial is design to find out if you have any
problems with the medications that may be used in
the infusion pump.
How
Is The Trial Conducted?
The trial
is done in an in-patient basis at the hospital. You
will have a temporary intrathecal catheter placed
under light sedation with the assistance of an
x-ray machine. Through this catheter, pain
medication will be given. For the next 24 to 48
hours, different doses of medication will be given
through the catheter while you are staying in the
hospital.
What
Is The Purpose Of The Trial?
Provide
the patient with the best possible results, by
identifying any possible problems, early. The trial
is similar to a "Test Drive" prior to purchasing a
car. It allows you to see how it feels, before you
commit to it.
What
Do You Look For In A Trial?
We look
for two things. The first is to see if the
medicines will be effective in providing you with
the desired relief of the pain. The second is to
find out if you will be able to tolerate the
medication well without experiencing any side
effects.
What
Possible Problems Could We Encounter During The
Trial?
Just like
any other medical procedure, it has its risks and
possible complication. Some of these may include
bleeding, infection, nerve damage and death. These
are rare, but need to be mentioned because they are
always possible. The more common side effects are:
soreness at the trial site, itching, nausea,
vomiting, and rash.
Implantation:
If the
trial is deemed a success, then a permanent implant
can be considered.
Will
The Procedure Hurt?
The procedure involves inserting a needle through
skin and deeper tissues (like a "tetanus shot").
So, there is some discomfort involved. However, we
numb the skin and deeper tissues with a local
anesthetic using a very thin needle prior to
inserting the larger needle. Most of the patients
also receive intravenous sedation and analgesia,
which makes the procedure easy to
tolerate.
Will
I Be "Put Out" For This
Procedure?
No, the placement of the pump is done under
regional anesthesia and intravenous sedation. The
amount of sedation given generally depends upon the
patient tolerance. The procedure is divided in two
stages. The first stage (tubing placement) is done
with the local anesthesia and sedation, for safety
purposes. At the beginning of this stage, the
patients will experience a stick and the sting from
the local anesthetic. This is the only
uncomfortable part of the procedure. Once the
tubing is in place, local anesthetic is injected
through it to confirm adequate placement and to
obtain anesthesia on the entire surgical field.
From this point on, the rest of the procedure is
completely painless.
How
Is The Procedure Performed?
It is done with the patient lying on the side. The
patients are monitored with EKG, blood pressure
cuff and blood oxygen-monitoring device. The skin
is cleaned with antiseptic solution and then the
procedure is carried out. X-ray (fluoroscopy) is
used to guide the needle for inserting the
tubing.
Where
Is The Tubing Inserted? Where Is The Pump
Placed?
Tubing is inserted in the midline at the lower
back. The pump is then placed on the side of the
abdomen.
What
Should I Expect After The
Procedure?
If the procedure is successful, you may feel that
your pain may be controlled or quite less. The pump
is adjusted electronically to deliver adequate
amount of medication. As with any other surgical
procedure, it will take 8-10 weeks for the wound to
heal to the point where the skin strength is back
to normal.
What
Should I Do After The Procedure?
This procedure is normally an outpatient procedure.
After a one to two hour recovery period, you will
be allowed to go home. You must have a responsible,
strong adult drive you home. This person should be
able to assist you in moving if you are still weak
from the anesthetics. You should plan to rest for
the remainder of the week. You will need to take
antibiotics to prevent
infection.
How
Long Will The Pumps Last?
The medication contained within the pump will last
about 1 to 3 months depending upon the your
requirements, concentration, and amount infused. It
is then refilled via a tiny needle inserted into
the pump chamber. This is done in the office and it
only takes a few minutes. The batteries in the pump
may last 3 to 5 years depending upon the usage.
Newer devices have been tested and estimated to
last 8 years. The batteries can not be replaced or
recharged. The entire pump is surgically replaced
at that time.