The morphological characteristics of paraspinal muscles in young patients with unilateral neurological symptoms of lumbar disc herniation

Table 2 At L3-S1, Comparison of RCSA and DFF of bilateral paraspinal muscles in LBP group

Paraspinal muscles		The normal side	The diseased side	P
MF muscle
L3/4
	RCSA	28.78 ± 6.50	27.93 ± 5.58	0.753
	DFF	11.75 ± 3.39	12.41 ± 3.45	0.596
L4/L5
	RCSA	36.44 ± 6.59	34.91 ± 7.81	0.674
	DFF	21.96 ± 4.78	23.98 ± 4.57	0.115
L5/S1
	RCSA	47.58 ± 10.51	44.01 ± 9.26	0.611
	DFF	22.58 ± 6.25	23.10 ± 5.57	0.423
ES muscle
L3/L4
	RCSA	91.15 ± 16.90	89.57 ± 15.11	0.703
	DFF	11.85 ± 3.72	12.98 ± 3.37	0.854
L4/L5	L4/L5
	RCSA	75.02 ± 11.08	73.49 ± 13.36	0.640
	DFF	20.73 ± 4.76	21.18 ± 3.78	0.218
L5/S1
	RCSA	40.10 ± 13.59	39.79 ± 12.48	0.835
	DFF	22.78 ± 3.44	23.48 ± 3.12	0.379
PS muscle
L3/4
	RCSA	78.14 ± 11.64	82.96 ± 12.94	0.284
	DFF	7.46 ± 1.76	5.02 ± 1.24	0.102
L4/5
	RCSA	83.36 ± 9.61	82.67 ± 8.37	0.719
	DFF	6.13 ± 1.97	7.21 ± 1.49	0.511
L5/S1
	RCSA	87.74 ± 13.42	86.17 ± 12.33	0.650
	DFF	8.82 ± 1.33	9.04 ± 1.59	0.247

Note:* There was significant differences between two groups(P < 0.05)
LBP Low back pain; PM Psoas major; MF Multifidus; ES Erector spinae; RCSA Relative cross-sectional area; DFF Degree of fatty infiltration

ISSN: 1471-2474