ALB and diabetes mellitus: Significant differences did not exist between the patients in the RT-TES and TES groups, with regard to patient characteristics (age, sex, body mass index, smoking status, diabetes, American Society of Anesthesiologists grade, Frankel grade, previous spine surgery, preoperative chemotherapy, steroid administration, and serum albumin) or surgical characteristics (operative time, intraoperative bleeding, number of resected vertebrae, and transection of nerve roots) (Table 1).