Figure 1From: Pretreatment with intrathecal amitriptyline potentiates anti-hyperalgesic effects of post-injury intra-peritoneal amitriptyline following spinal nerve ligation Flow chart of the study. DRG: dorsal root ganglion; D: day; m: minute; POD: postoperative day; S: Sham; L: Ligation followed by vehicle treatment; A: ligation followed by treatment with amitriptyline intra-peritoneally post-injury; P: Pretreatment intrathecal amitriptyline, ligation and post-injury intra-peritoneal amitriptyline.Back to article page