OBJECTIVES: Test a miniaturized neurostimulator transforaminally placed at the dorsal root ganglion (DRG) and evaluate the device’s safety and efficacy in treating failed back surgery syndrome (FBSS) low back pain.
SUBJECTS:Eleven subjects with chronic intractable neuropathic trunk and/or lower limbs pain were included.
METHODS:The system consisted of an implantable, miniaturized stimulator, provided by Stimwave Technologies (Freedom-4) and an external transmitter. Only one stimulator per subject was implanted unilaterally (one-one side) at L1 to L5 levels. During Phase 1 of the study, the stimulators were not anchored. In Phase 2, the stimulators were anchored. Subjects were treated during 45 days after which the stimulator was removed. Pain reduction, implant duration, and stimulator migration were registered.
RESULTS: Overall pain reduction was 59.9%, with only one device placed at one location, covering only a portion of the painful areas in the majority of the subjects. In Phase 1, the non-anchored stimulators migrated (moved) a mean of 8.80 mm and in Phase 2 a mean of 1.83 mm. Stimulator migration did not correlate with changes in pain relief. Mean time-to-implant duration was 10 minutes and no adverse events were reported during implant, follow-up period, or after explant.
CONCLUSIONS: The pain reduction results indicate that the spinal cord stimulation (SCS) Wireless System is a viable treatment of low back pain through stimulation of the DRG, and better overall pain reduction may be achieved by implanting multiple devices (apparently 8 can be used) With short percutaneous implant times and excellent safety profile, this new system may offer health cost savings.
Stories reaching the papers have suggested that minichips implanted can control pain. This is an early study but they implant a microchip that can set off vibrating signals when it gets power from a transmitting/recieving device that you can keep in your pocket.
A TENS machine is a small, battery-operated device that has leads connected to sticky pads called electrodes.
You attach the pads directly to your skin. When the machine is switched on, small electrical impulses are delivered to the affected area of your body, which you feel as a tingling sensation.
The electrical impulses can reduce the pain signals going to the spinal cord and brain, which may help relieve pain and relax muscles. They may also stimulate the production of endorphins, which are the body’s natural painkillers.
Would this approach work in MS?
It is difficult to say it would need to be tried and tested, but it may work for some and not others as some of you know nerve pain is difficult to manage
Does TENS work for you? If so maybe there may be merit in this system. Time will tell