Dr. Borys reviewing an ultrasound scan beside the Mindray machine during a treatment session
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Neural Treatment

Perineural Injection Therapy

For burning, tingling, or aching pain that follows a nerve path and hasn't responded to standard treatment.

Dilute dextrose injected just beneath the skin along irritated superficial sensory nerves — intended to reduce neurogenic inflammation and calm nerve-driven pain rather than simply covering it up.

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Overview

What is Perineural Injection Therapy?

This treatment is most often considered when pain has a nerve-like quality — burning, tingling, sensitivity, or pain that seems to travel — and standard joint or tendon treatments have not fully explained the symptoms.

Perineural Injection Therapy (PIT), also known as neural prolotherapy or Lyftogt technique, is a treatment for chronic pain caused by inflamed or dysfunctional nerves. It was developed by Dr. John Lyftogt in New Zealand.

The treatment involves injecting a dilute dextrose solution (typically 5%) just beneath the skin along the path of affected superficial nerves. This solution helps reduce neurogenic inflammation — inflammation caused by the nerves themselves.

Unlike deeper injections, perineural therapy targets the small sensory nerves just beneath the skin that can become chronically inflamed and drive persistent pain patterns.

Dr. Borys preparing an injection under a laminar flow hood using sterile technique
How It Works

How Perineural Therapy Works

Perineural injection therapy targets superficial nerves to reduce chronic neurogenic inflammation.

Identifying Nerves

Using careful palpation and anatomical knowledge, the affected nerves are identified along their course.

Subcutaneous Injection

A dilute dextrose solution is injected just under the skin along the path of the affected nerve.

Reducing Inflammation

The solution is intended to reduce neurogenic inflammation, helping to calm the irritated nerve and ease pain patterns.

Benefits

Benefits of Perineural Therapy

Targets nerve-related pain at its source

Calms irritated superficial sensory nerves

Targets neurogenic inflammation directly at the affected nerve

Minimally invasive with minimal discomfort

Can be used alongside PRP or prolotherapy when nerve irritation is a contributing factor

Conditions

Conditions Treated with Perineural Therapy

Perineural injection therapy is used to address a range of nerve-related and neuropathic pain conditions.

Peripheral nerve irritation and entrapment-type pain
Post-surgical nerve pain
Referred pain patterns
Neuropathic pain (selected cases)
How They Compare

Perineural Injection vs. Nerve Hydrodissection

Both are nerve-targeted treatments, but they work in different ways and address different types of nerve pain.

Perineural Injection TherapyThis page
Nerve Hydrodissection
Mechanism
Dilute dextrose calms irritated superficial sensory nerves
Fluid physically separates compressed nerves from surrounding scar tissue
Guidance
Surface-based; no ultrasound required
Ultrasound-guided for precision at the entrapment site
Nerve target
Small sensory nerves just beneath the skin
Deeper named nerves at a specific compression point
Best for
Superficial nerve irritation and neuropathic pain patterns
Nerve compression and entrapment — carpal tunnel, cubital tunnel, tarsal tunnel
Research

Evidence-Informed Research

Perineural injection therapy is supported by emerging clinical research.

Ulnar Neuropathy

Perineural Dextrose for Ulnar Neuropathy

Randomized, controlled, double-blind study evaluating perineural dextrose injection for ulnar neuropathy at the elbow.

Read on PubMed
Comparative Trial

Perineural PRP vs Dextrose

Prospective randomized head-to-head trial (Shen et al., 2019) comparing perineural platelet-rich plasma and 5% dextrose for moderate carpal tunnel syndrome.

Read on PubMed
Upper Limb Neuropathy

Perineural Dextrose for Upper Limb Compression Neuropathies

Systematic review and meta-analysis (Azizi et al., Heliyon, 2025) confirming the effectiveness of perineural dextrose injection across peripheral compression neuropathies of the upper limbs.

Read on PubMed
Frequently Asked Questions

Perineural Injection Therapy: Common Questions

What is perineural injection therapy?

Perineural injection therapy (PIT), also known as neural prolotherapy or the Lyftogt technique, is a treatment in which small amounts of a dextrose solution are injected just beneath the skin around inflamed superficial nerves. This is intended to reduce neurogenic inflammation and ease chronic nerve-related pain.

What conditions does perineural injection therapy treat?

PIT is used for chronic neuropathic pain, peripheral nerve entrapment and compression neuropathies, and persistent regional pain that involves irritated superficial nerves.

How does perineural injection therapy work?

Irritated superficial nerves can drive ongoing pain and inflammation. The dextrose solution used in PIT is thought to calm these inflamed nerves, interrupting the pain cycle and allowing the nerve to settle and function more normally over a series of treatments.

Does perineural injection therapy hurt?

The injections are shallow and use very fine needles, so most patients tolerate them well. You may feel brief stinging with each injection and some mild tenderness afterward, which typically resolves quickly.

Ready to calm your nerve-related pain?

It starts with an initial visit to discuss whether perineural injection therapy is the right option for your nerve-related pain — a standard medical evaluation that may be billed through insurance depending on your individual plan and coverage.

The information on this page is for general educational purposes only and is not individual medical advice. It is not a substitute for a consultation with a qualified provider. Whether a treatment is appropriate depends on your individual evaluation, and individual results vary.