BMN Blog

DEC 05

At this point, nearly every American has heard about the opioid crisis. With increasing scrutiny from governing bodies regarding opioids, pain physicians are tested in treating patients in the challenging chronic pain population. While non-opioid medications, therapy and procedures have their place in treating chronic pain, what are physicians to do when patients fail all of these options? One treatment to consider is spinal cord and peripheral nerve stimulation.

 

Spinal cord stimulation has been around for decades, but the improvements in this industry have been vast over the last several years. Spinal cord stimulation has been traditionally used to treat pain in the low back and legs after lumbar surgery. It can also be used to treat pain in the neck and arms, and can be employed for patients who have failed medication, injections, therapy, and surgery.

 

It involves the placement of two electrodes in the epidural space that connect to a battery about the size of a pacemaker. Energy is sent from the battery to the metallic contacts on the wires to modulate the way pain signals are transmitted through the spinal cord to the brain.

 

The best part about a spinal cord stimulator is that a trial period is used to assess a patient’s response. A patient has about seven days to try out the therapy before moving to permanent implant.

 

Prior to recent advances in technology, about 50 percent of spinal cord stimulation patients received 50 percentage or more pain relief. Now about 80 percent of patients receive 80 percentage pain relief or more.

 

Nerve stimulation is not limited to the dorsal column of the spinal cord. Peripheral stimulation has been utilized for a long time, but due to changes in insurance, it was no longer getting covered several years ago. Thankfully these restrictions have been lifted and peripheral stimulation is now back and better than ever.

 

Previously, peripheral nerve stimulation worked well but had some downfalls. One of the bigger ones was pain surrounding the battery or implanted pulse generator (IPG). With spinal cord stimulation, there is typically ample tissue in the low back or flank to implant the IPG, but with peripheral stimulation, the distance from the lead to the IPG was limited which forced physicians to place the IPGs in more sensitive areas on the extremities.

 

Fortunately, there is new technology that offers wireless stimulation options. Patients no longer have to worry about an unsightly or painful IPG. The leads that are used to either stimulate the dorsal column of the spinal cord or a peripheral nerve wirelessly communicate to a battery pack. A patient simply wears a battery pack on their person that lasts roughly 12 to 24 hours, which is comparable to the battery life of a cell phone. In regards to peripheral stimulation, this technology can be used to treat pain all over the body that is typically difficult to treat using traditional interventional pain procedures such as pain in the shoulder, hand, abdomen, pelvic area, knee, and feet.

 

The medical community does our best in treating out patients with the tools we have. With increasingly stricter rules, we must start to think outside the box in treating pain. Keep spinal cord and peripheral nerve stimulation in mind when treating your patients.

 

Further reading:

“Wireless Neuromodulation in the Management of Chronic Refractory FBSS Back Pain: Preliminary Prospective Experience with Different Stimulation Targets and Waveforms.” Perryman, Laura. Anesthesia & Perioperative Management Journal. 2018 2: 003.

“Wireless Neuromodulation by A Minimally Invasive Technique For Chronic Refractory Pain. Report of Preliminary Observations.” Billet, Bart. Medial Research Archives, Vol 5, Issue 8, August 2017. 

 

Harrison Irons, MD practices with Alabama Pain Physicians.

 

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