Genicular Nerve Block (G Block)

What Is Genicular Nerve Block (G Block)?

This outpatient procedure is an injection of anesthetic to the genicular nerves. These are the sensory nerves that transmit pain signals from the knee to the brain. Anesthetizing these nerves can disrupt the pain signals caused by degeneration of the knee. A genicular nerve block can provide temporary pain relief. It may help determine if a patient is a candidate for nerve ablation, which can provide long-term pain relief.