Fig. 1

Absolute expenses and reimbursement for surgically treated spinal cord tethering and syringomyelia. Lower mean operating room cost (OR cost min), mid-situated mean OR cost (OR cost mid), and upper mean OR cost (OR cost max) including reimbursement of standard diagnosis related group (standard DRG) and complex DRG are displayed as bar graphs with respective error bars. All the estimated OR costs of care were different from DRG reimbursements (p = 0.005). Operating room, OR; diagnosis related groups, DRG; United States Dollar, USD