Using a fluoroscope (a type of x-ray device that shows video images from within the body), the physician carefully guides a needle through the skin and down to the target nerve. A thin electrode is passed through this needle. When the electrode is activated, it heats up the nerve. This heating process, called ablation, is not painful. It will eliminate the nerve's ability to transmit pain signals. The ablation process is repeated at two more locations to treat three of the genicular nerves.