Nerve hydrodissection
When a peripheral nerve is irritated by surrounding tissue, nerve hydrodissection may offer a way to address that pressure. Dr. Coon uses ultrasound to guide fluid around the nerve, with the goal of reducing symptoms and improving comfortable movement.
Purpose and potential benefits
What nerve hydrodissection is
Hydrodissection places fluid around a selected peripheral nerve to separate it from surrounding tissue. The aim is to reduce irritation related to pressure or restricted movement. Ultrasound lets Dr. Coon see the nerve, needle and spread of fluid throughout the procedure.
A nerve block uses an anesthetic to temporarily numb a nerve. Hydrodissection addresses the tissue around it, even when numbing medicine is part of the proposed fluid.
Potential benefits and limitations
The goal is less pain or tingling and more comfortable use of the affected limb. Progress may mean fewer symptoms at night or greater tolerance for everyday activity.
Benefit and duration vary with the diagnosis, and the procedure may not help. Dr. Coon will explain how closely the available evidence fits the nerve concern being treated.
Planning and procedure
What is placed around the nerve
What may be injected
The fluid depends on the nerve, diagnosis and your health history. Dr. Coon will identify the proposed fluid, its purpose and any added medicine before you decide.
When 5 percent dextrose in water (D5W) is used around a nerve, this is an off-label use of a fluid approved for intravenous use.
Diagnosis and target selection
Burning, tingling, numbness or radiating pain can have different causes. Dr. Coon connects the symptom pattern, examination and relevant testing to a specific nerve, such as the median nerve at the wrist in carpal tunnel syndrome.
Ultrasound or nerve conduction testing may help clarify the diagnosis and treatment options. Symptoms arising from the spine or a more widespread nerve condition need a different plan.
What a treatment visit may involve
A hydrodissection procedure generally includes:
- Review of the treatment plan and consent
- Positioning of the limb and ultrasound assessment
- Guided placement of fluid around the selected nerve
- Instructions for activity and follow-up
Dr. Coon will explain the fluid, any numbing medicine and the expected visit length beforehand. The number of procedures depends on the diagnosis and your response.
Risks and other options
When another option fits better
Therapeutic options may include activity changes, splinting, rehabilitation, medication or a surgical opinion. Dr. Coon will explain which options fit the nerve involved, the severity of symptoms and your goals.
Corticosteroid may offer temporary symptom relief in selected cases, with risks that depend on the tissue and repeated use. Severe nerve compression, progressive weakness or muscle wasting needs prompt assessment and may call for a surgical opinion. Hydrodissection should not delay that care.
Risks and health considerations
Possible risks include temporary pain, bruising, bleeding, infection, a faint or light-headed reaction and injury to the nerve or nearby structures.
Dr. Coon reviews medicines, allergies, infection risk and bleeding concerns before treatment. These may affect the choice of fluid or whether a procedure is appropriate. Do not stop or change medicines on your own.
Recovery and next steps
Recovery and aftercare
Aftercare depends on the nerve treated and whether numbing medicine was used. Dr. Coon will discuss activity, driving and any splinting or rehabilitation that belongs in your plan.
Your instructions will include how to manage symptoms, when to contact the clinic and a plan to reassess your progress.
Cost and payment options
Your evaluation lasts an hour and costs $400. Dr. Coon explains the separate procedure fee and any included follow-up before scheduling. Payment is due before or at the time of your visit or procedure. NOVA Regen is a self-pay practice and does not bill insurance.
If there is little or no improvement
Dr. Coon will help you define goals you can assess, such as less tingling, fewer symptoms at night or more comfortable use of the affected limb, and set a time to review your response.
If those goals are not being met, he will review the diagnosis, treatment target and other therapeutic options with you before recommending another procedure.
Questions people ask
Is this the same as a corticosteroid injection?
No. Hydrodissection uses fluid to separate a nerve from surrounding tissue. A corticosteroid is an anti-inflammatory medicine. Dr. Coon will explain exactly what the proposed fluid contains and why.
Do I need a nerve conduction study first?
Not always. Dr. Coon may recommend testing when the diagnosis or severity is unclear, or when the result would change the treatment plan.
Could I still need surgery?
Yes. Severe compression, progressive weakness or muscle wasting may need a surgical opinion. Hydrodissection should not delay that assessment.
When will we assess the result?
Dr. Coon will reassess your symptoms and movement immediately after hydrodissection. Some people notice relief right away. Follow-up will assess whether changes last and how symptoms affect sleep and daily activity.
How treatment is scheduled
An evaluation helps you understand whether this treatment has a useful role in your care.
Questions about fit? Request a 10-minute fit call.