Testing Stimulation Intraoperatively - Medtronic SPECIFY 2X8 Manual De Implantación

Filename Date Time
UC200xxxxxx EN
4 x 8 inches (101 mm x 203 mm)
▪
Use bipolar forceps to grasp and coagulate the epidural fat so that the fat
can be stripped away, exposing the dura mater.
Note: A hemilaminotomy is preferred over a laminotomy because surgical
leads are designed to fit in the epidural space under the vertebral body.
w
Warning: Introduce the passing elevator, the lead blank, and the lead at
a shallow angle. Using an angle that is too deep could cause contusion to
the spinal cord.
1. Carefully introduce the epidural passing elevator.
a. Slowly and with minimal force introduce the passing elevator into the
epidural space along the midline, guiding the entry so that the
approach angle is as shallow as possible.
b. Remove the passing elevator.
2. Carefully introduce the radiopaque lead blank:
a. Introduce the lead blank into the epidural space to ensure proper size
and location of the lead site.
b. Remove and discard the lead blank.
#
Caution: Use bone wax or instrumentation to ensure that the bony
edge of the laminotomy is smooth. Sharp edges may damage the
lead, resulting in intermittent or loss of stimulation.
3. Position the surgical lead:
a. Using a rubber-tipped forceps to handle the lead paddle, carefully
position the lead paddle in the epidural space.
Note: Make sure the stimulating electrodes face the dura mater.
b. Advance the lead paddle cephalad until the entire paddle is in the
epidural space.
c. For bilateral pain, place the lead close to the midline.
4. Verify the lead position under fluoroscopy (AP and lateral views).

Testing stimulation intraoperatively

Note: This procedure requires a snap-lid connector cable, which is available as
an accessory kit.
#
Caution: To prevent possible uncomfortable or unexpected stimulation
(jolting or shocking sensation):
▪
program parameter changes in small increments above the perception
threshold (the amplitude value(s) at which the patient first perceives
paresthesia).
▪
decrease the amplitude(s) to 0.0 V before:
–
changing electrode polarities.
–
connecting or disconnecting the cable to the external
neurostimulator.
–
replacing the external neurostimulator batteries.
–
turning ON the neurostimulator.
1. Use the lid latch to open the snap-lid connector cable's snap-lid connector
(Figure 2a).
10 English 39286 2009-07
2009-07
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