Fig. 1From: Unilateral neurostimulation-assisted cervical epidural anesthesia for upper limb surgeries—a case seriesA Catheter tip located in the lateral epidural space at the level of C6 vertebral level. B Catheter tip is lateral to the mid-line at the C6 vertebral level. Contrast injections delineate the cervical nerve roots (Cnr). T1, first costotransverse junctionBack to article page