Spinal Cord Stimulation for Chronic Pain: What to Know
Spinal cord stimulation is an implanted therapy that sends low-level electrical pulses to the spinal cord to interrupt pain signals. It is usually considered for long-term back or nerve pain after medicines, exercise and other treatments have not helped. Patients try a temporary device first, and it reduces pain for many people without curing the underlying cause.
Key takeaways
- Spinal cord stimulation (SCS) is a pain management option, not a cure.
- A temporary trial comes before any permanent implant.
- Risks include infection, lead movement, device problems and nerve injury.
- Implants can affect MRI access and interact with other implanted devices.
- Employees recovering from the procedure may need short-term work adjustments.
This article is general information, not medical advice. Talk with a qualified clinician about your own situation.
How does spinal cord stimulation work?
An SCS system has thin wires called leads, placed in the space near the spinal cord, and a small battery-powered generator. The generator sends a mild electrical current through the leads that changes how pain signals reach the brain. According to MedlinePlus, the U.S. National Library of Medicine's consumer health site, the treatment does not cure back pain or treat the source of the pain, but many people have less pain and need less pain medication.
SCS is one of several neuromodulation technologies that use electrical signals to influence the nervous system. For a look at a very different device in the same broad field, see our article on the Synchron brain-computer interface.
Who might be a candidate?
MedlinePlus lists situations where SCS may be recommended, generally after other treatments have failed:
- Back pain that continues or worsens after prior treatment, including surgery
- Complex regional pain syndrome (CRPS)
- Long-term back pain, with or without pain or numbness in the arms or legs
- Inflammation of the membranes covering the brain and spinal cord (arachnoiditis)
Pain specialists typically also review overall health, other implanted devices, imaging needs and expectations before recommending a trial. Many programs include a psychological assessment as part of evaluation for chronic pain procedures.
What happens during the trial and implant?
| Stage | What happens | Typical notes from MedlinePlus |
|---|---|---|
| Trial | Leads are placed near the spinal cord under local anesthetic and connected to an external unit worn on the body | About 1 to 2 hours; usually home the same day |
| Evaluation | The patient tracks pain relief and daily function during the trial period | Permanent implant is considered only if relief is substantial |
| Permanent implant | A generator is placed under the skin of the abdomen or buttock | About 30 to 45 minutes under general anesthesia |
| Ongoing care | Settings are adjusted over time; batteries are recharged or replaced | Non-rechargeable batteries last 2 to 5 years and need surgery to replace |
During healing, patients are usually told to avoid heavy lifting, bending and twisting, while light activity such as walking is encouraged.
What are the risks and trade-offs?
MedlinePlus lists risks that patients should discuss with their surgeon:
- Spinal fluid leakage and spinal headaches
- Infection, which may require removing the device
- Leads or generator breaking, shifting or failing, which may need more surgery
- Nerve damage, which can cause weakness, lasting pain or, rarely, paralysis
- Bleeding or fluid collection
- Interference with pacemakers and defibrillators, and possible limits on MRI scans
Questions worth asking a pain specialist include: what other options remain, how relief will be judged during the trial, whether the device is compatible with MRI, whether the battery is rechargeable and what follow-up visits are needed.
What should employers and HR teams know?
Chronic pain affects attendance, focus and physical work. An employee who has an SCS trial or implant may need time off for the procedures and temporary restrictions on lifting and bending afterward. Under the Americans with Disabilities Act and similar state laws, employers may need to discuss reasonable accommodations, such as modified duties or flexible schedules. The Job Accommodation Network offers free guidance on options.
Handle medical information confidentially and ask only for what is needed to support leave or accommodation. Our guides on HR questions about medical conditions and rights to medical accommodation at work explain the process from both sides.
Frequently Asked Questions
Is spinal cord stimulation permanent?
The implant is intended for long-term use, but it can be adjusted, turned off or removed. The temporary trial lets patients test relief before committing to a permanent device. Non-rechargeable generators need surgical replacement when the battery runs down, and devices may be removed if there is infection, a mechanical problem or not enough benefit.
Can you have an MRI with a spinal cord stimulator?
It depends on the specific device and where the scan is needed. MedlinePlus notes that you may not be able to have MRI scans after implantation, though some systems are labeled for MRI under specific conditions. Ask your specialist about MRI compatibility before the implant, especially if you are likely to need imaging for another condition.
How soon can someone return to work after an implant?
Timing depends on the job, the procedure and the surgeon's instructions. Desk work may resume sooner than physical roles, because patients are told to avoid heavy lifting, bending and twisting while the incision and leads heal. Employees should share work restrictions from their clinician with HR so temporary adjustments can be arranged.
Next steps
- Patients: list current treatments and ask a pain specialist whether an SCS trial fits.
- Prepare questions about risks, MRI compatibility, battery type and follow-up.
- Employers: review leave and accommodation procedures for planned surgeries.
Last reviewed: October 2026.
Sources
- Spinal cord stimulation, MedlinePlus, U.S. National Library of Medicine
- Chronic Pain and Complementary Health Approaches, National Center for Complementary and Integrative Health
- Job Accommodation Network, JAN
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