Genicular Nerve Block

What is a Genicular Nerve Block?

A genicular nerve block is an injection of medication near specific nerves in the knee, known as the genicular nerves, to provide temporary pain relief. This procedure is commonly used for individuals experiencing chronic knee pain, especially when other treatments, such as medications or physical therapy, have not been effective.

How It Works:

Target Nerves: The genicular nerves are responsible for transmitting pain signals from the knee joint to the brain. By blocking these nerves, the pain signals are interrupted, which can reduce the sensation of pain.

Procedure:

• The patient is positioned to allow easy access to the knee.
• The skin over the knee is cleaned, and a local anesthetic is often applied to numb the area.
• Using imaging guidance, such as ultrasound or fluoroscopy, a healthcare provider carefully inserts a needle near the genicular nerves around the knee.
• A combination of a local anesthetic and a corticosteroid is injected to block the nerves and provide pain relief.

Purpose:

• The primary goal of a genicular nerve block is to reduce knee pain, allowing for improved mobility and the ability to participate in physical therapy or daily activities.
• Some injections may offer more prolonged pain relief, particularly when a corticosteroid is included, as it can reduce inflammation in the area.

Indications:

• Chronic knee pain due to conditions like osteoarthritis.
• Persistent knee pain following knee surgery.
• Other knee-related pain conditions that have not responded to conservative treatments.

Duration of Relief:

• Pain relief from a genicular nerve block can vary, with some patients experiencing relief for several weeks to months.
• If the block provides significant relief, it may be followed by a more long-term treatment, such as radiofrequency ablation, to provide extended pain relief.

Risks:

• Potential risks include infection, bleeding, or temporary numbness around the injection site.
• Not all patients may experience significant pain relief, and in some cases, the relief may be temporary.