How long does a nerve block injection in the neck last?

Answered by Robert Dupre

A nerve block injection in the neck, also known as a cervical nerve block, is a procedure commonly used to manage pain in the neck, shoulders, and upper back. The duration of the effects of a nerve block injection in the neck can vary depending on several factors.

Firstly, it is important to note that there are different types of nerve blocks that can be performed in the neck region. The most common types include facet joint blocks, medial branch blocks, and selective nerve root blocks. Each of these nerve blocks targets different nerves and has varying durations of action.

Facet joint blocks typically provide relief for a shorter duration, usually between 8 to 12 hours. These injections target the small joints located between the vertebrae in the neck and can help alleviate pain caused by arthritis or injury to these joints. While the effects of facet joint blocks may be relatively short-lived, they can serve as a diagnostic tool to identify the specific source of pain.

Medial branch blocks, on the other hand, are performed to target the medial branches of nerves that transmit pain signals from the facet joints. These injections can provide pain relief for a longer duration, typically lasting between 12 to 36 hours. Medial branch blocks are often used to confirm the diagnosis of facet joint pain and may be followed by radiofrequency ablation, a procedure that offers longer-lasting pain relief.

Selective nerve root blocks are another type of nerve block injection commonly used in the neck. These injections target the specific nerve roots that exit the spinal cord and can help alleviate pain caused by nerve compression or inflammation. The duration of pain relief from selective nerve root blocks can vary, but it is generally expected to last between 12 to 24 hours.

It is important to note that the duration of pain relief can vary from person to person and may be influenced by individual factors such as metabolism and the specific medication used in the nerve block injection. Additionally, the effects of a nerve block injection will gradually wear off as the medication is metabolized by the body.

It is also worth mentioning that while a nerve block injection can provide temporary pain relief, it does not address the underlying cause of the pain. Therefore, it is often used as part of a comprehensive treatment plan that may include physical therapy, medication, and other interventions to manage and treat the underlying condition.

The duration of a nerve block injection in the neck can range from 8 to 36 hours, depending on the type of nerve block performed. Facet joint blocks typically last around 8 to 12 hours, medial branch blocks last between 12 to 36 hours, and selective nerve root blocks last between 12 to 24 hours. It is important to consult with a healthcare professional to determine the most appropriate type of nerve block and to discuss potential risks and benefits.