Neuromodulation

Dorsal Root Ganglion Stimulation

Dorsal root ganglion stimulation places leads near selected sensory ganglia to target a more focal pain distribution. Its strongest comparative evidence and US indication center on lower-limb CRPS and causalgia.

Medical illustration of a lumbar dorsal root ganglion and a focal stimulation lead near the neural foramen.
Clinical illustration.

Quick orientation

What to know first

The target is a selected sensory ganglion near a spinal nerve root.

DRG can be useful when pain is focal and difficult to cover with broader stimulation.

Persistent pain after spine surgery may be considered only after an individualized evaluation; it is not presented as a primary indication here.

Learn what may come next

Related guides.

Use these links to learn about related symptoms, conditions, and treatments. An individual evaluation is still needed to determine a diagnosis or whether a treatment may be appropriate.

Care overview

Neuromodulation

Compare approved neuromodulation pathways and understand how modality selection differs by diagnosis, anatomy, and goals.

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Specific treatment

Spinal Cord Stimulation

Understand spinal cord stimulation evaluation, trial, implantation, limitations, and selection context.

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Specific treatment

Peripheral Nerve Stimulation

Understand peripheral nerve stimulation for selected named peripheral-nerve pain presentations.

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Specific treatment

Vagus / Auricular Neuromodulation

Understand the actual nontraditional vagus/auricular neuromodulation service offered by the practice without implying implanted cervical VNS for epilepsy.

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Target and mechanism

The target defines the modality

A dorsal root ganglion contains sensory nerve-cell bodies near the neural foramen. DRG leads are positioned near one or more selected ganglia, which differs anatomically and technically from placing SCS leads over the dorsal columns.

Side-by-side medical illustration comparing a broader spinal cord target with a focal dorsal root ganglion target.
Clinical illustration.

Patient selection

Selection questions

These questions help determine whether the proposed neural target and treatment plan fit the individual problem.

A documented focal lower-limb neuropathic pain pattern

CRPS or causalgia evaluated against accepted diagnostic criteria

Failure or intolerance of appropriate less-invasive care

Ability to complete a trial and long-term device follow-up

A staged decision

How we decide what may come next

The pathway includes diagnostic review, selection of the ganglion level that matches the painful territory, medical and psychosocial risk assessment, a temporary trial, and a separate decision about permanent implantation.

Related care

Conditions this treatment may be considered for

These related guides show educational connections. They do not establish candidacy, a recommendation, or a required sequence.

Needs a separate clinical evaluation

Persistent Post-Surgical Spine Pain

Potential alternative for selected focal neuropathic presentations after reassessment.

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Therapeutic Consideration

Complex Regional Pain Syndrome

May be considered for selected focal CRPS presentations within a trial-based pathway.

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Decision process

Decision sequence

The safest sequence starts with diagnosis and target, then compares alternatives and evidence, and only then considers a trial, temporary treatment, or implant.

Map the pain distribution and confirm the diagnosis

Choose target levels based on anatomy rather than a generic protocol

Define trial goals and review the result before implant

Evidence at a glance

Evidence at a glance

Evidence must be matched to the exact diagnosis, comparator, follow-up period, and system studied.

The ACCURATE randomized trial found higher treatment success with DRG stimulation than conventional SCS in selected lower-limb CRPS and causalgia.

The FDA indication is specific and should not be expanded by implication.

Evidence for persistent post-surgical spine pain remains limited and is not promoted as a featured relationship.

Decision quality matters

Evidence, limits, and who it may fit

Relationship membership does not establish candidacy. Published results must be qualified by selection criteria, study design, durability, complications, and alternatives.

Risks and limits

Evidence, risks, and limits

The ACCURATE randomized trial found higher treatment success with DRG stimulation than conventional SCS in selected lower-limb CRPS and causalgia. The FDA indication is specific and should not be expanded by implication. Evidence for persistent post-surgical spine pain remains limited and is not promoted as a featured relationship.

Infection, lead migration or fracture, neural injury, revision, and explant are material risks.

Focal targeting does not prove the diagnosis.

Evidence outside the approved and well-studied populations is less certain.

The visit

What to expect from an evaluation

The visit should identify the diagnosis, the proposed neural target, the evidence that applies to that exact condition, alternatives, and a measurable next step.

Common questions

Dorsal Root Ganglion Stimulation FAQ

These answers are educational and cannot determine an individual diagnosis or treatment plan.

How is DRG stimulation different from SCS?

DRG stimulation targets a selected sensory ganglion near a spinal nerve root. SCS typically targets broader pathways near the spinal cord.

What conditions have the strongest evidence?

The strongest comparative evidence and US indication are for selected lower-limb CRPS and causalgia.

Is DRG automatically better for focal pain?

No. Focal distribution is one selection factor. Diagnosis, anatomy, prior care, risks, and the evidence for the specific indication still matter.

Target before technology

Start with a target-specific consultation

A consultation can clarify whether this modality, another treatment, or continued diagnostic work is the appropriate next step.