Fig. 1From: Development and validation of a nomogram to predict the risk of surgical site infection within 1 month after transforaminal lumbar interbody fusionCross section of the lumbar spine. T2WI MRI and calculation of the cross-sectional area of LPM and fat infiltration. A–C From the same patient with little fat infiltration; D–F From the same patient with much fat infiltration; B, E CSA of LPM on the same level; C, F CSA of fat tissue (red)Back to article page