Figure 2From: Computed tomographic analysis of the quality of trunk muscles in asymptomatic and symptomatic lumbar discectomy patients Illustration of the boundaries of the Region of Interest (ROI) of the psoas, paravertebral mass and multifidus. Computed tomographic scan at L5 level 76 months after bilateral L5-S1 discectomy in a 49-year old man with pain.Back to article page