A pulse aimed at the wire, not the tissue

Every other procedure on this site puts a needle near inflamed or irritated tissue. This one is different in kind: thin leads are placed in the epidural space against the spinal cord itself, and a small implanted generator sends an electrical pulse along them. That pulse does not repair a disc or reduce inflammation in a joint — it interferes with how pain signal travels up the spinal cord toward the brain, and in patients who respond, that interference is enough to change daily function meaningfully even when the underlying nerve damage or post-surgical scarring is permanent and untouched.

Who this is actually for

The trial, and what it is actually measuring

Before anything permanent is placed, temporary leads go in through a needle — no incision, no anchoring — connected to an external generator you wear on a belt for about a week of ordinary life. The number most people fixate on is percent pain reduction, and a response of roughly 50% or more is the commonly used threshold for a positive trial. That number is not the whole picture. We are watching whether you sleep through more of the night, whether you can do a load of laundry or a flight of stairs you have been avoiding, and whether the improvement holds up outside a clinic visit, across an ordinary week with ordinary stress on it. A patient who reports 40% pain reduction but a genuine, sustained functional gain can be a better trial than one who reports 60% relief that evaporates the moment daily life resumes.

Waveforms, described without the marketing

Three broad families of stimulation are in use today, and none of them require a particular product name to understand. Traditional, lower-frequency stimulation produces a tingling sensation, called paresthesia, over the painful area — some patients find that sensation itself reassuring, others find it distracting. Burst stimulation delivers pulses in tightly spaced clusters rather than a steady stream, frequently without any noticeable tingling at all. High-frequency stimulation, generally delivered around 10,000 pulses per second, is also typically paresthesia-free and works through a different proposed mechanism at the level of the dorsal horn. No single waveform family outperforms the others for every patient, and part of what the trial period is for is finding out which pattern your particular pain responds to before anything is permanent.

The implant, and what changes at that point

This practice performs the permanent implant itself, not a referral to a separate surgical group. The leads that gave you relief during the trial are replaced with permanent ones, anchored in place, and connected to a generator implanted under the skin, typically in the flank or upper buttock. It is a real surgical procedure with real recovery, not an extension of the trial — and it only happens after the trial has already told us it is likely to work.

What the trials found, and what realistic looks like

The randomized evidence for failed back surgery syndrome is now nearly two decades deep: a multicenter trial comparing stimulation to continued conventional medical management found substantially better pain relief, quality of life and function in the stimulation group, with benefit still measurable at two years. A separate randomized trial comparing high-frequency stimulation to traditional low-frequency stimulation found the newer waveform produced superior relief without paresthesia in patients with chronic back and leg pain. For painful diabetic neuropathy specifically, a multicenter randomized trial found the majority of stimulated patients achieved substantial pain reduction where medication management alone had failed them.

What none of these trials show is a cure. This device modulates a signal; it does not reverse the nerve damage, the post-surgical scarring or the metabolic injury that produced the pain in the first place. The honest goal is a meaningful, functional reduction in pain that lets you do more of your life — not a return to a nervous system that never had the injury. Patients who understand that going in report far higher satisfaction than patients expecting the device to erase the problem entirely.

The MRI question

Most current-generation systems can be scanned under specific, device-defined conditions rather than being universally MRI-safe or universally forbidden — the details depend on the exact system implanted, the body part being scanned, and settings that sometimes need to be adjusted immediately before the scan. Carry your device identification card, tell any imaging facility about the implant before you arrive, and confirm compatibility with us in advance rather than discovering a conflict the day of an unrelated MRI.

Common questions

Related reading

• Failed back surgery syndrome
• Complex regional pain syndrome
• Peripheral neuropathy
• Peripheral nerve stimulation
• Intrathecal pump