Chronic knee pain often comes from arthritis or inflammation that irritates the nerves around the joint. A knee nerve block targets the genicular nerves — the small nerves that send pain signals to the brain. By injecting numbing medication around these nerves under imaging guidance, the procedure provides immediate relief and also confirms whether those nerves are the true pain source. If the block works, patients may benefit from radiofrequency ablation (RFA), which calms the nerves for months