Fig. 1From: The effect of posterior lumbar dynamic fixation and intervertebral fusion on paraspinal musclesA. MRI T2 Axis map: The preoperative area of paraspinal muscles and fat of LAS in the PLIF group. B. MRI T2 Axis map: The postoperative area of paraspinal muscles and fat of LAS in the PLIF group. C. MRI T2 Axis map: The preoperative area of paraspinal muscles and fat of LAS in the K-rod dynamic internal fixation group. D. MRI T2 Axis map: The postoperative area of paraspinal muscles and fat of LAS in the K-rod dynamic internal fixation group. A’-D′: The periphery of the paraspinal muscles on the image was outlined using yellow lineBack to article page