PERIPHERAL NERVE HYDRODISSECTION

General Orthopedic Surgeons located in Benbrook, Ft Worth, TX

Ultrasound-guided treatment for selected nerve entrapments - with standard injectates, PRP, and a careful discussion of peptide adjuncts

WHAT HYDRODISSECTION IS

Peripheral nerve hydrodissection is an ultrasound-guided procedure that places fluid around a compressed or irritated nerve to separate it from fascia, scar tissue, muscle, tendon, or other structures. The primary mechanical goal is to restore a healthier tissue plane around the nerve while the injectate may provide additional biologic or anti-inflammatory effects.

WHEN IT MAY BE CONSIDERED

• Carpal tunnel syndrome (median nerve) - the most studied indication.

• Ulnar nerve entrapment at the elbow in selected cases. • Radial tunnel/posterior interosseous nerve irritation. • Common fibular/peroneal nerve entrapment near the fibular head. • Saphenous nerve or infrapatellar branch entrapment. • Selected sciatic, cluneal, cutaneous, or postsurgical scar-related nerve entrapments when the pain pattern and ultrasound findings support the diagnosis.

COMMON HYDRODISSECTION INJECTATES

HOW HYDRODISSECTION MAY HELP

• Mechanically separates the nerve from adherent or compressive tissue

• May reduce focal pressure on the nerve and improve sliding/gliding during movement. • May improve the environment around the vasa nervorum - the small blood vessels that nourish peripheral nerves. • Can deliver an injectate around the nerve without placing medication directly into the nerve itself. • May provide a nonsurgical option after bracing, activity modification, rehabilitation, or medication has not been sufficient, while still preserving surgery as an option if needed.

HYDRODISSECTION WITH PRP

PRP can be used as a perineural biologic treatment and, in some protocols, as part of the hydrodissection volume. PRP is particularly attractive when the treatment goal includes both mechanical release and a regenerative biologic signal. As with any PRP treatment, formulation matters: platelet dose, leukocyte and red-cell content, final volume, sterility, and ultrasound-guided placement all influence the procedure.

WHAT ABOUT PEPTIDES?

Peptides are sometimes discussed in regenerative and neuropathy practices, but they should not be treated as routine hydrodissection ingredients. The following compounds are of research interest because of nerve- or tissue-repair biology; none has an established, standardized perineural hydrodissection protocol approved by the FDA.

WHO IS A GOOD CANDIDATE?

The best candidates have a focal nerve distribution of numbness, tingling, burning, pain, or weakness that matches examination and, when appropriate, electrodiagnostic testing or ultrasound findings. Hydrodissection is less likely to solve symptoms caused by generalized neuropathy, cervical/lumbar radiculopathy, severe axonal loss, a mass lesion, or advanced mechanical compression that requires surgical decompression.

WHAT TO EXPECT

The nerve is mapped with ultrasound, the skin is cleaned, and the injectate is placed around the nerve under real-time imaging. Patients may feel temporary pressure, tingling, or soreness. Activity recommendations depend on the nerve and the underlying cause. Rehabilitation often includes nerve gliding, mobility work, ergonomic changes, and correction of the movement or loading pattern that contributed to irritation.

RISKS AND LIMITATIONS

• Temporary soreness, bruising, swelling, numbness, or a transient symptom flare.

• Bleeding, infection, vascular injury, tendon injury, or allergic reaction to an added medication are uncommon but possible.

• Direct needle trauma or intraneural injection can injure a nerve; this is why continuous ultrasound visualization and operator experience are critical.

• Severe or progressive weakness, muscle atrophy, major electrodiagnostic abnormalities, or a structural lesion may require surgical consultation rather than repeated injections.

SELECTED REFERENCES

These references are provided for clinical transparency and further reading. Individual treatment decisions require an in-person evaluation.

[1] Lee K, Park JM, Yoon SY, et al. Ultrasound-Guided Nerve Hydrodissection for the Management of Carpal Tunnel Syndrome: A Systematic Review and Network Meta-Analysis. Yonsei Med J. 2025;66(2):111-120. doi:10.3349/ymj.2024.0089. [2] Ultrasound-Guided Nerve Hydrodissection for Peripheral Entrapment Neuropathies. PubMed PMID: 40766979. 2025. [3] Sveva V, Farì G, Fai A, et al. Safety and Efficacy of Ultrasound-Guided Perineural Hydrodissection as a Minimally Invasive Treatment in Carpal Tunnel Syndrome: A Systematic Review. J Pers Med. 2024;14(2):154. doi:10.3390/jpm14020154. [4] Yang FA, Wang HY, Kuo TY, et al. Injection therapy for carpal tunnel syndrome: A systematic review and network meta-analysis of randomized controlled trials. PLoS One. 2024;19(5):e0303537. doi:10.1371/journal.pone.0303537. [5] A systematic review and meta-analysis of the effectiveness of perineural dextrose injection in peripheral compression neuropathies of the upper limbs. PubMed PMID: 39866436. 2025. [6] Effectiveness of Platelet-Rich Plasma for Patients With Carpal Tunnel Syndrome: A Systematic Review and Meta-Analysis of Randomized Controlled Trials. PubMed PMID: 35571114. 2022. [7] Heij L, Niesters M, Swartjes M, et al. Safety and efficacy of ARA 290 in sarcoidosis patients with symptoms of small fiber neuropathy: randomized double-blind pilot study. Mol Med. 2012;18:1430-1436. doi:10.2119/molmed.2012.00332. [8] Brines M, et al. ARA 290 improves symptoms in patients with sarcoidosis-associated small nerve fiber loss and increases corneal nerve fiber density. Mol Med. 2013. PubMed PMID: 24136731. [9] Vasireddi N, Hahamyan H, Salata MJ, et al. Emerging Use of BPC-157 in Orthopaedic Sports Medicine: A Systematic Review. HSS J. 2025;21(4):485-495. doi:10.1177/15563316251355551.

Southwest Orthopedic Associates

✆ Phone (appointments): 817-731-9400

Fax: 817-731-4282

Address: 6311 Southwest Blvd., Ft Worth, TX 76132

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