 For a C8 medial branch RFTC, the needle is placed at the junction of the superior articulating facet and the base of the transverse process of T1.,Sensory stimulation was carried out at 50 Hz from 0 to 2.0 volts. 
For a C8 medial branch RFTC , the needle is placed at the junction of the superior articulating facet and the base of the transverse process of T1.,Sensory stimulation was carried out at 50 Hz from 0 to 2.0 volts .