RhizotomySpinal Nerve RootsTrigeminal NeuralgiaInjectionsSciatic NerveMicrovascular Decompression SurgeryCausalgiaGlossopharyngeal Nerve DiseasesTrigeminal NerveNerve FibersSpinal NervesPeripheral NervesGlossopharyngeal NerveOptic NerveCerebral PalsyElectrocoagulationNeuroleptanalgesiaNeurons, EfferentWallerian DegenerationBrachial PlexusNeurons, AfferentNerve RegenerationGanglia, SpinalNerve BlockSpinal Cord