Fig. 2From: The area ratio of Modic changes has predictive value for postoperative surgical site infection in lumbar spine surgery: a retrospective studyA: Type 1 MC, B: Type 2 MC, C: Type 3 MC, D: The area ratio of MC (%) is defined as the area of MC in the sagittal plane (mm²) divided by the area of the vertebral body (mm²), and the result is rounded to two decimal placesBack to article page