Predictive Factors in Maxillary and Mandibular Nerve Radiofrequency Treatment for Trigeminal Neuralgia

"For maxillary nerve pulsed radiofrequency, the lineer transducer is placed distal and parallel to the zygomatic arch, bridging the coronoid and condylar processes and a 22 gauge 6 mm RF cannula was inserted into the target area. With sensory stimulation, patients experienced a distinct sensation in upper jaw, teeth, and palate. Then, PRF treatment was performed at 42 °C for 240 seconds.~For mandibular nerve pulsed radiofrequency, the transducer was placed distally and parallel to the zygomatic arch, bridging the coronoid and condylar processes. The pterygopalatine fossa was visualized and the needle was inserted to target area. With sensory stimulation, patients experienced a distinct sensation in the lower jaw and teeth. With motor stimulation, a throwing movement of the jaw was observed with contraction of the masseter and temporal muscles. PRF treatment was performed at 42 °C for 240 s."