Paravertebral Muscle Morphology in L4-L5 Disc Herniation: Insights from the Michigan State University Classification

21 October 2023: Clinical Research

Pei-yu Du ^1AB* , Yong-wang Zhang ^2AB* , Xu-hao Cao ^3B , Yue-lin Liu ^3C , Yun-tao Yan ^2CD , Lu Liu ^2EF , Shuang-qing Du ^2AFG*

DOI: 10.12659/MSM.941937

Med Sci Monit 2023; 29:e941937

Table 3 Fat infiltration of patients with L4–L5 herniation in different grade compared with normal people.

	Grade 1		Grade 2		Grade 3
	B	P	B	P	B	P
Age	0.017	0.380	−0.003	0.835	−0.031	0.186
Sex	−0.130	0.804	−0.785	0.090	−1.086	0.110
FI of MF
L12	0.017	0.711	0.053	0.171	0.056	0.255
L23	−0.028	0.697	−0.046	0.454	−0.034	0.668
L34	−0.066	0.197	−0.013	0.763	0.046	0.435
L45	−0.002	0.956	−0.037	0.268	−0.095	0.118
L51	−0.010	0.774	−0.024	0.441	0.000	0.992
FI of ES
L12	−0.044	0.595	−0.014	0.845	−0.002	0.983
L23	0.196	0.058	0.028	0.763	0.113	0.383
L34	−0.051	0.440	0.075	0.175	0.019	0.813
L45	0.094	0.054	0.061	0.169	0.114	0.072
L51	−0.007	0.872	0.038	0.293	0.029	0.566
FI – fat infiltration; MF – multifidus; ES – erector spinae; ^* means