Fig. 1From: Correlation between intervertebral disc degeneration, paraspinal muscle atrophy, and lumbar facet joints degeneration in patients with lumbar disc herniationGoutallier grading (range, 0 to 4) on T1W axial MRIs are represented by (a) to (e), respectively [9, 12], and are graded as: grade 0, normal muscle tissue; grade 1, fat streaks; grade 2, more muscle than fat; grade 3, equal amounts of fat and muscle tissue; and grade 4, more fat than muscleBack to article page