Pulsed radiofrequency (PRF) “ablation” is a modified mode of delivering RF energy to neural and peripheral tissues. Radiofrequency energy is cycled on and off in a square wave function (usually at 2 Hz), which leads to far less tissue heating than continuous RF. It is considered to be a neuromodulatory procedure with minimal or no tissue denaturation; however, PRF can be applied in sufficient strength to surpass temperatures of 45°C with modern equipment. PRF is applied with contemporary RF equipment as an alternate mode, using the same insulated cannulas and probes. The relatively low risk of complication from PRF compared to truly ablative procedures makes the therapy attractive for treating chronic pain.