Radiofrequency ablation (RFA) works by disrupting the sensory nerve pathways that transmit pain signals from the knee joint to the brain. The procedure specifically targets the genicular nerves, which are responsible for carrying pain messages from within the knee. Because these nerves are the focus of treatment, the procedure is also known as genicular nerve ablation.

In individuals with knee osteoarthritis, these sensory nerves can become overactive due to ongoing inflammation, cartilage wear, and changes in joint mechanics. This can result in persistent, hard-to-manage pain, even after trying physiotherapy, medications, or injections.

During the procedure, Dr Hockings uses real-time imaging (typically X-ray or ultrasound) to guide the placement of a thin, needle-like probe near the genicular nerves. Once accurately positioned, the tip of the probe delivers a controlled dose of radiofrequency energy, which generates heat to create a small lesion on the nerve. This temporarily interrupts the nerve’s ability to transmit pain signals.

Importantly, RFA does not change the structure of the joint itself. Instead, it helps reduce pain perception, allowing for improved mobility, greater comfort, and the ability to participate more easily in daily activities, all without the need for incisions, stitches, or surgical recovery.