Hydrodissection

Hydrodissection can be highly effective when nerve entrapment is the main source of pain. Hydrodissection uses ultrasound to place a needle next to, rather than into, a nerve. Nerve entrapment can cause pain because nerves that cannot glide normally fire pain signals. The article warns that hydrodissection should not be treated as a universal pain treatment. The purpose of hydrodissection is to free nerves that have become fibrotic and stuck to fascial layers.