Nerve blocks are versatile treatments used by pain specialists to diagnose and treat a wide range of painful conditions. They reduce acute pain due to injury, nerve trauma, surgery, and headaches. They are also used to alleviate chronic pain, in conditions like carpal tunnel syndrome, arthritis, neuralgia, cancer, and Complex Regional Pain Syndrome (CRPS).
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Whether you are experiencing a new injury, a flare-up of an old injury, or an ongoing pain issue, nerve blocks can provide a faster and more comfortable recovery.
Nerve blocks are often used as treatments for pain due to a nerve injury or trauma. However, nerve blocks can treat many different types of pain, including bone and soft tissue pain.
Nerve blocks work directly at the source of pain by “turning off” a nerve's pain signals before they reach the spinal cord and brain. They stop pain in a well-defined part of the body, such as the face, head, shoulder, knee, abdomen, or finger. This limited area is represented (innervated) by a single nerve or a group of interconnected nerves, known as a ganglion or plexus.
Nerve blocks can treat joint pain. Many patients are not aware that nerve blocks can help with arthritis pain in a joint or with pain after a joint replacement. The most commonly treated joints are the knee (genicular nerve) and shoulder (suprascapular nerve). Blocking these nerves offers great options for both short and long term pain relief.
Nerve blocks have many benefits and are used to:
Several different treatments fall under the “nerve block” category.
There are various blocks available, to cover different body areas. A pain specialist can determine the best block for your particular situation.
Nerve blocks according to the body area they treat:
Depending on the painful area, a fast-acting local anesthetic is applied to a single nerve or a group of nerves. The local anesthetic stops the pain messages from leaving a nerve and reaching the brain. It offers immediate pain relief. While the local anesthetic lasts for several hours, the block can work to reset the overactive nerve firing and can have long lasting effects for weeks and months. A steroid may be added to reduce irritation in the nerve and to extend the pain-relief .
Nerve blocks are outpatient procedures done under fluoroscopy (X-ray) or ultrasound guidance to increase safety and efficacy. Some nerve blocks require special needles that use low level electrical current to find the target nerve. A patient may feel a slight twitch during the procedure. A nerve block takes only 5-10 minutes.
Pain relief after a nerve block is immediate, usually starting within a couple of minutes to a half hour after the procedure. The effect of the local anesthetic usually lasts a couple of hours, but the effects can extend to several weeks and months. Some people find relief after a single nerve block while others may need a series of nerve blocks spaced over several months. Depending on the type of nerve block performed, patients who receive pain relief with the nerve block may be candidates for a nerve radiofrequency procedure. A radiofrequency procedure creates a lesion in the nerve to stop the nerve from sending pain signals for 6 months, up to 1 year.
Treatments offered to extend pain relief after a successful nerve block:
Nerve blocks may be used alone or alongside other treatments such as oral medications and physical therapy.
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