Diagnostic nerve blocks numb specific nerves or groups of nerves suspected of causing pain. By injecting an anesthetic into the area of pain, doctors can then diagnose whether this area is indeed the source of pain, according to the patient's assessment of how successful the anesthetic is in relieving pain. If a patient reports little or no pain relief following the anesthetic injection, the doctor concludes that pain originates from another area of the body.
Benefits of a Diagnostic Nerve Block for Locating the Origin of Pain
Chronic pain can significantly overlap or share similarities with pain symptoms caused by different pain generators. For example, lumbar (low) back pain could potentially originate from multiple sources, like your sacroiliac joint, facet joints, paraspinal muscles or intervertebral discs. Treatment for each [...]