Methods of treating spinal tissue of a patients body are disclosed, some including providing a system including an energy source and first and second probe assemblies, wherein each of the probe assemblies includes an electrically conductive energy delivery device electrically coupled to the energy source inserting the energy delivery devices of the first and second probe assemblies into spaced-apart treatment sites for the spinal tissue and delivering energy from the energy source to the spinal tissue through the energy delivery devices. Various options and modifications are possible. For example, energy may be delivered in both a bipolar manner and a monopolar manner, and at least one of the first ad second probe assemblies may be repositioned before again delivering energy.