Methods of treating the sacroiliac region of a patient's body by delivering energy are described. In some embodiments, the method comprises the steps of: positioning one elongated probe comprising at least one energy delivery device within a sacroiliac joint of the body; and delivering radiofrequency energy through the elongated probe. In some embodiments, the delivery of energy results in the creation of a lesion. In further embodiments, energy may be delivered substantially along a long axis of the sacroiliac joint. In yet further embodiments, at least one energy delivery device may be positioned adjacent a sacroiliac joint and energy may be delivered so as to create a lesion at least partially within the joint.