Spinal Cord Stimulator (SCS): A Modern Option for Chronic Nerve Pain

For some patients, back or leg pain continues even after injections, nerve blocks, or surgery. In these cases, a Spinal Cord Stimulator (SCS) may provide a safe, minimally invasive way to control chronic nerve pain.

An SCS system delivers small electrical impulses to the spinal cord to “quiet” pain signals before they reach the brain helping patients regain comfort and activity without long-term medication dependence.

Spinal Cord Stimulator (SCS): A Modern Option for Chronic Nerve Pain

For some patients, back or leg pain continues even after injections, nerve blocks, or surgery. In these cases, a Spinal Cord Stimulator (SCS) may provide a safe, minimally invasive way to control chronic nerve pain.

An SCS system delivers small electrical impulses to the spinal cord to “quiet” pain signals before they reach the brain helping patients regain comfort and activity without long-term medication dependence.

Why It’s Done

Spinal cord stimulation can be recommended for patients who:

  • Have persistent nerve pain despite other treatments

  • Experienced only temporary relief from injections or nerve ablation

  • Have ongoing lumbar radiculopathy or post-surgical pain

  • Want to reduce reliance on opioids or pain medication

How the System Works

The spinal cord stimulator consists of:

  • Leads – thin, flexible wires placed near the spinal cord

  • Generator– a small battery-powered device that sends gentle electrical pulses

These pulses change how pain signals are perceived reducing discomfort without

causing numbness or loss of function.

How the Procedure Is Performed

The spinal cord stimulator consists of:

The Trial Phase

  • A temporary stimulator is placed under fluoroscopic guidance using local anesthesia.

  • Wires are positioned near the spinal cord, and the generator is connected externally.

  • You’ll test the system for 5–7 days to see if it reduces your pain by at least 50%.

The Permanent Implant

If the trial is successful, a small generator is implanted under the skin (usually in the lower back or buttock area). The procedure takes about an hour and is done on an outpatient basis.

You’ll receive a remote control to adjust your settings and manage comfort throughout the day.

What to Expect Afterward

  • Soreness at the implant site for a few days

  • Gradual adjustment to stimulation levels as your body adapts

  • Most patients resume normal daily activity within one week

  • Device checkups are performed periodically to ensure optimal function

The device can be turned off at any time, and the system is removable if needed.

Safety and Risks

Spinal cord stimulation is FDA-approved and has been used safely for decades.

Possible though uncommon side effects include:

  • Temporary discomfort at lead or battery sites

  • Shifting of leads, requiring minor adjustment

  • Infection (very rare with sterile technique)

You’ll undergo a comprehensive screening to ensure you’re a good candidate before proceeding.risk of paralysis or muscle weakness.

Low Back Frequently Asked Questions

01. What is a facet ablation (RFA), and how is it different from diagnostic blocks?

Answer: Blocks test the pain source; ablation stops the nerve signal.
A medial branch block temporarily numbs a spinal joint to confirm the pain generator. If it works, radiofrequency ablation (RFA) uses heat to deactivate that small nerve for 6–12 months. The joint stays stable, and pain often lessens dramatically.
Lumbar | Interventional Spine | RFA

02. How long does a radiofrequency ablation (RFA) last, and can it be repeated?

Answer: Relief often lasts 6–12 months and the procedure can be repeated safely.
After an RFA, the tiny sensory nerves that send pain signals grow back slowly. Many patients enjoy meaningful relief for 6 months to a year. If the pain returns, a repeat ablation can usually be performed using the same approach. Regular stretching and strengthening help extend the benefit. Lumbar | Cervical | Interventional Spine | RFA

03. Why does my low back hurt after sitting or long drives?

Answer: It’s usually from facet-joint stress or weak postural muscles.
Sitting flexes the lumbar spine and compresses facet joints and discs, especially if the core is de-conditioned. Over time, this posture leads to inflammation and stiffness. Supportive cushions, regular breaks, and targeted therapy for core and glute muscles often relieve symptoms.
Lumbar | Ergonomics | Rehab

04. What is a diagnostic discogram, and why is it rarely done now?

Answer: It injects dye into spinal discs to find the pain source but carries risks.
Discography involves pressurizing discs with contrast dye while monitoring pain response. It was once common before spine surgery but is now less used because it can worsen disc damage and cause infection. Modern MRI and targeted nerve blocks provide safer diagnostic insight.

Diagnostics | Lumbar | Interventional Spine

05. Why do some people have chronic back pain even after “successful” fusion surgery?

Answer: Adjacent levels often wear out faster.
Spinal fusion stabilizes one level but transfers stress to the discs and joints above and below, leading to adjacent segment disease. Scar tissue, muscle atrophy, and nerve irritation can also persist. Nonsurgical options like PRP or radiofrequency treatment can help preserve the surrounding spine.
Lumbar | Post-Surgery | Interventional Spine

06. What are “adjacent segment disease” and “hardware failure” after spine surgery?

Answer: They mean nearby levels or implants break down over time.
After fusion, joints next to the fused area compensate by moving more, sometimes developing arthritis or stress fractures. Hardware fatigue or loosening can also occur years later. Regular imaging helps detect changes early; pain-management injections or strengthening programs can often delay revision surgery.
Lumbar | Cervical | Post-Surgery | Spine Degeneration

07. How do you tell if leg pain is from the back or from a knee or hip problem?

Answer: Back-related pain travels below the knee; joint pain usually stays local.
Nerve compression in the spine typically causes sharp, shooting pain that radiates past the knee or into the foot. Hip or knee arthritis usually creates aching localized pain or stiffness without tingling. Imaging and physical-exam maneuvers help determine whether the source is spinal, joint, or both.
Diagnostics | Lumbar | Hip | Knee

08. What is an epidural steroid injection and what does it do?

Answer: It delivers anti-inflammatory medicine around pinched nerves.
Guided by X-ray, a thin needle places medication into the epidural space of the spine. The steroid reduces swelling around irritated nerves from a herniated disc or arthritis. Relief may last weeks to months and can allow better participation in physical therapy.
Interventional Spine | Epidural | Lumbar | Cervical

09. What are red-flag symptoms that spine pain is not just mechanical?

Answer: Fever, unexplained weight loss, numbness, or bladder issues.
Warning signs include constant pain at rest, night sweats, progressive weakness, loss of control of urine or stool, or recent infection. These could signal infection, tumor, or severe nerve compression and need emergency evaluation.
Safety | Lumbar | Cervical | Emergency

10. How long should I wait before considering spine surgery?

Answer: Only after conservative care has clearly failed and red flags are excluded.
Most mechanical back or neck pain improves with guided injections, therapy, or biologic repair within 3–6 months. Surgery is reserved for progressive weakness, structural instability, or nerve compression causing loss of function. A second opinion is always appropriate before proceeding.
Lumbar | Cervical | Surgery Decision

11. What is a “facet joint,” and why can it cause back or neck pain?

Answer: It’s a small stabilizing joint behind each vertebra that can become arthritic.
Facet joints allow bending and twisting. With aging or injury, they may develop arthritis and inflammation that causes sharp localized pain, often worse when leaning backward or standing long periods. Facet injections or RFA can calm these joints for months at a time.
Lumbar | Cervical | Anatomy | Interventional Spine

12. When should I seek emergency care after a neck or back injury?

Answer: Sudden weakness, numbness, fever, or bladder/bowel changes.
Go to the ER immediately for severe pain with loss of strength, incontinence, high fever, or trauma with head injury. These could indicate nerve or spinal-cord compression, infection, or fracture. Early treatment prevents permanent damage.
Cervical | Lumbar | Emergency | Safety

13. What is a “nerve root block,” and how is it different from an epidural?

Answer: A nerve-root block targets one specific nerve, while an epidural bathes several.

A selective nerve-root block (SNRB) uses live X-ray to deliver medication directly around one irritated spinal nerve. It helps confirm which nerve causes the pain and can calm inflammation at that precise level. Epidural injections are broader, covering multiple nerves at once.

Interventional Spine | Diagnostics | Lumbar | Cervical

14. How can I tell if my hip pain is coming from the joint or my back?

Answer: Hip arthritis hurts in the groin; back problems radiate to the leg.
Hip joint disease often causes deep aching in the groin or front thigh, worse with walking or stairs. Lumbar nerve compression tends to cause burning or tingling down the leg. Diagnostic injections into the hip or spine can confirm the true source.
Hip | Lumbar | Diagnostics | Joint Pain

15. Can regenerative medicine help spine patients who already have hardware or fusions?

Answer: Yes, but injections are placed around not into the fused levels.
PRP and bone-marrow concentrate can reduce inflammation in joints and ligaments next to a fusion where new pain develops. These procedures don’t interact with the hardware itself. Most patients benefit from improved flexibility and less reliance on pain medication.

Spine | Post-Surgery | Orthobiologics | Interventional Spine

When to See a Specialist

If chronic nerve pain persists despite previous treatments, a Spinal Cord Stimulator trial can help determine whether neuromodulation is right for you.

Our specialists perform both the trial and permanent procedures using precise, image-guided techniques for safety and effectiveness.

Minimally invasive spine & joint care.
This page is informational only. No medical advice. Book on our secure intake portal.

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