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

Table 3 At L3-S1,Comparison of RCSA and DFF of bilateral paraspinal muscles in control group

paraspinal muscles		The normal side	The diseased side	P
MF muscle
L3/4
	RCSA	32.33 ± 5.08	31.50 ± 5.35	0.590
	DFF	10.02 ± 3.11	11.64 ± 3.37	0.475
L4/L5
	RCSA	46.76 ± 6.91	35.39 ± 7.15	<0.001*
	DFF	14.10 ± 3.12	22.51 ± 3.58	<0.001*
L5/S1
	RCSA	48.59 ± 12.84	46.79 ± 11.43	0.743
	DFF	21.50 ± 5.12	22.41 ± 6.37	0.352
ES muscle
L3/L4
	RCSA	95.85 ± 15.70	91.47 ± 16.98	0.117
	DFF	8.66 ± 3.48	11.45 ± 3.65	0.103
L4/L5
	RCSA	77.56 ± 12.58	74.35 ± 14.63	0.415
	DFF	20.94 ± 3.35	22.93 ± 4.24	0.238
L5/S1
	RCSA	43.01 ± 12.53	40.87 ± 10.95	0.317
	DFF	22.47 ± 3.95	24.97 ± 3.17	0.649
PS muscle
L3/4
	RCSA	79.96 ± 10.42	83.72 ± 11.59	0.144
	DFF	7.71 ± 1.45	5.75 ± 1.43	0.158
L4/5
	RCSA	82.40 ± 13.91	84.76 ± 10.23	0.121
	DFF	6.84 ± 1.31	8.98 ± 1.25	0.217
L5/S1
	RCSA	88.46 ± 14.83	91.72 ± 13.22	0.107
	DFF	8.11 ± 1.82	7.35 ± 1.39	0.165

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

ISSN: 1471-2474