Spinal Cord Stimulation
Spinal cord stimulation is an implantable neuromodulation option for selected chronic pain conditions, using electrical stimulation near the spinal cord to reduce pain signals and improve function.
Pain and neuromodulation pathway
From pain mapping to durable management
Goals
Clarify pain relief, function, sleep, medication burden, and quality-of-life priorities.
Mapping
Identify whether symptoms follow a nerve, spinal pathway, facial pain syndrome, or broader pain pattern.
Treatment review
Review therapy, medications, injections, blocks, surgery, imaging, and prior response.
Option selection
Choose stimulation, intrathecal pain therapy, lesioning, nerve surgery, or continued non-surgical care.
Trial or procedure
Use trials when appropriate, or proceed with the selected targeted treatment plan.
Long-term care
Adjust programming, dosing, refills, precautions, and follow-up over time.
Goal-directed care
Treatment planning starts with pain relief, function, sleep, medication burden, and quality-of-life goals.
Selective options
Surgery is considered when medication, therapy, injections, or conservative care are not enough.
Adjustable follow-up
Stimulation and pump therapies require ongoing management to keep treatment aligned with goals.
Overview
Spinal cord stimulation (SCS) is a neuromodulation treatment for selected chronic pain conditions. It uses an implanted system to deliver controlled electrical stimulation near the spinal cord, changing how pain signals are processed.
The goal is usually meaningful pain reduction and better function, not complete elimination of pain. SCS is most useful when pain has a neuropathic quality and has not responded adequately to a structured non-surgical plan.
When it may be considered
SCS may be considered when pain is chronic, disabling, and not adequately controlled by medication, therapy, injections, or prior surgery. It is most often considered for neuropathic pain patterns.
Common situations where SCS may enter the discussion include persistent neuropathic leg or back pain after spine surgery, complex regional pain syndrome, painful peripheral neuropathy, radicular pain, and selected focal or regional neuropathic pain syndromes. The best candidates usually have a pain pattern that can be targeted by stimulation, realistic expectations, and a clear plan for long-term follow-up.
How it works
A trial is often performed first. If the trial provides meaningful benefit, permanent electrodes and a pulse generator may be implanted. The device is programmed and adjusted over time.
During a trial, temporary leads are placed in the epidural space near the spinal cord and connected to an external stimulator. The trial period lets the patient and team evaluate whether stimulation reduces pain during real daily activities before deciding on a permanent implant.
If the trial is successful, permanent leads and a pulse generator are implanted. Programming may create a tingling sensation in the painful area, or it may use stimulation patterns that are not felt. Settings can be adjusted as symptoms, activity, and goals change.
Lead selection and surgical planning
SCS systems can use different lead designs and stimulation strategies. Percutaneous leads are commonly used for trials and can also be used for permanent implantation. Paddle leads are placed surgically and may be considered when lead stability, prior spine surgery, anatomy, coverage goals, or revision history make that approach more appropriate.
Lead choice is not a simple “better or worse” decision. It depends on the pain distribution, the trial response, prior operations, imaging, patient goals, and the balance between invasiveness and expected durability. A careful discussion should include how the device will be implanted, what recovery involves, what can be adjusted with programming, and what limitations remain even after a successful trial.
What to expect
- Careful diagnosis and review of prior treatments
- Psychological and medical screening when appropriate
- Temporary stimulation trial in many cases
- Long-term device programming and follow-up
- Review of MRI compatibility and other device precautions
- Activity limits after trial or implantation to reduce the chance of lead movement
- Incision care and monitoring for infection after permanent implantation
Risks and limitations
Possible risks include infection, bleeding, lead migration or breakage, uncomfortable stimulation, loss of benefit, spinal fluid leak headache, worsening pain, and very rarely neurologic injury. SCS may reduce pain but does not correct the underlying condition causing it. Patients should not stop pain medicines or other treatments without guidance from their care team.
Dr. Barone’s approach
Dr. Barone evaluates spinal cord stimulation as one part of a broader pain and neuromodulation strategy, making sure the pain pattern, prior treatment history, imaging, and goals fit the treatment. The aim is to identify patients who are likely to benefit, interpret the trial carefully, and select an implant strategy that matches the patient’s anatomy and long-term needs.
Research & evidence perspective
Spinal cord stimulation continues to evolve as new stimulation patterns, devices, and lead designs become available. Dr. Barone has co-authored peer-reviewed research comparing cylindrical and paddle lead approaches for long-term chronic pain treatment. That evidence helps frame conversations about lead selection, durability, migration risk, infection risk, and expected benefit, but the final plan still depends on the individual patient’s diagnosis, anatomy, trial response, and goals.
References
- El Hadwe S, Wronowski F, Rehman S, Ofosu Ansong Snr Y, Barone DG. Cylindrical vs Paddle Leads in Spinal Cord Stimulation for the Long-term Treatment of Chronic Pain: A Systematic Review and Meta-analysis. Neuromodulation: Technology at the Neural Interface. 2025;28:204-233. doi:10.1016/j.neurom.2024.10.007.
Frequently asked questions
What is spinal cord stimulation? +
Spinal cord stimulation uses thin electrodes placed near the spinal cord and connected to an implanted pulse generator to modulate pain signaling.
Who may be a candidate? +
Candidates may include selected patients with chronic neuropathic pain, persistent pain after spine surgery, complex regional pain syndrome, or other pain conditions after careful evaluation.
Is there a trial before implantation? +
In many cases, a temporary trial is performed first to see whether stimulation meaningfully reduces pain before a permanent implant is considered.
What is the difference between percutaneous and paddle leads? +
Percutaneous leads are placed through a needle during many SCS trials and some permanent implants. Paddle leads require a small surgical exposure and may be considered in selected cases depending on anatomy, prior surgery, pain pattern, and the goals of stimulation.
Considering treatment for Spinal cord stimulation?
Dr. Barone evaluates new patients and referrals at Houston Methodist Hospital, Houston. Patients from outside Houston, across the United States, and internationally are welcome.