Fig. 1From: Correlation between severity of spinal stenosis and multifidus atrophy in degenerative lumbar spinal stenosisMeasurements of TCSA and TFCSA at the L3/L4 (A), L4/L5 (B), and L5/S1(C) intervertebral discs. Red margins outline the multifidus muscle cross-sectional area (TCSA), while green margins outline the fat-free multifidus muscle cross-sectional area (TFSCA)Back to article page