MOESM1 of Quantitative analysis of paraspinal muscle atrophy after oblique lateral interbody fusion alone vs. combined with percutaneous pedicle screw fixation in patients with spondylolisthesis

Additional file 1: Figure S1. Measurement of the functional cross-sectional area and fat infiltration percentage. Green circles show the multifidus (A) and erector spinae (B). The functional cross-sectional areas and fat infiltration percentageswere measured automatically by the software.