What is it?
A neurostimulator, also known as a spinal cord stimulator or SCS (Spinal Cord Stimulation), is an implantable medical device that uses mild electrical impulses to interrupt pain signals before they reach the brain. This system consists of ultra-thin electrodes that are placed in the epidural space near the spinal cord, connected to a programmable pulse generator implanted under the skin.
The device works based on the theory of pain gating, sending controlled electrical signals that “close the neurological gate” and prevent pain messages from reaching the brain. Patients can control the intensity and frequency of stimulation via an external remote control, allowing customized adjustments according to their daily needs. The implantation procedure is performed in two stages: first a temporary trial to assess efficacy, followed by definitive implantation if the results are satisfactory.
What is it used for and what diseases or chronic pains does it treat?
Neurostimulators have demonstrated exceptional efficacy in the treatment of severe and refractory chronic pain conditions:
- Failed back surgery syndrome (FBSS) with persistent radicular pain
- Neuropathic pain of spinal or peripheral origin
- Diabetic neuropathy in lower extremities
- Complex regional pain syndrome (CRPS) types I and II
- Chronic low back pain with radicular component
- Post-herpetic pain and post-infectious neuralgia
- Arachnoiditis and epidural fibrosis
- Brachial plexus injuries with chronic pain
- Post-amputation phantom pain
- Refractory angina and cardiac ischemic pain
- Chronic pelvic pain of neuropathic origin
- Spinal cord injuries with associated pain
This treatment is indicated when chronic pain is severe, persistent for more than six months, and does not respond to conservative therapies.
Alternatives to invasive surgeries or those that have not responded satisfactorily to conventional treatments.
Benefits compared to other treatments
Neurostimulators offer revolutionary advantages in the management of intractable chronic pain:
Personalized control: Patients can adjust the intensity and stimulation patterns according to their specific needs in real time.
Reversibility: Unlike destructive procedures, neurostimulation is completely reversible and the device can be removed if necessary.
Significant reduction of opioids: It allows to reduce up to 50-70% the consumption of potent analgesic drugs, avoiding dependence and side effects.
Functional improvement: Patients experience greater mobility, better sleep and ability to perform daily activities.
Advanced technology: Modern devices include rechargeable batteries lasting up to 10 years and sophisticated programming.
Continuous treatment: Provides pain relief 24 hours a day, 7 days a week.
Pre-assessment: The trial period allows confirmation of efficacy prior to final implementation.
Cost-effectiveness in the long term: Although it requires an initial investment, it reduces expenses in medications, consultations and other treatments.
Quality of life: Restores functionality and general well-being, allowing patients to resume a productive life.
Neurostimulators represent a definitive solution for those who have exhausted other therapeutic options without success.
