Table 6.

Correlation between lumbar paraspinal muscle ratio, postoperative sagittal parameters, and change in lumbar lordosis in Group 1 (lumbar disc herniation) patients

Correlations
	LL change	L4.5 muscle	Muscle percentile	Postoperative LL	Postoperative SVA
LL change
Pearson’s correlation	1	−0.528*	−0.341	0.225	0.125
Significant (two-tailed)		0.017	0.141	0.341	0.600
n	20	20	20	20	20
L4.5 muscle
Pearson’s correlation	−0.528*	1	0.911**	−0.489*	−0.475*
Significant (two-tailed)	0.017		0.000	0.029	0.034
n	20	20	20	20	20
Muscle percentile
Pearson’s correlation	−0.341	0.911**	1	−0.584**	−0.642**
Significant (two-tailed)	0.141	0.000		0.007	0.002
n	20	20	20	20	20
Postoperative LL
Pearson’s correlation	0.225	−0.489*	−0.584**	1	0.555*
Significant (two-tailed)	0.341	0.029	0.007		0.011
n	20	20	20	20	20
Postoperative SVA
Pearson’s correlation	0.125	−0.475*	−0.642**	0.555*	1
Significant (two-tailed)	0.600	0.034	0.002	0.011
n	20	20	20	20	20

*Correlation is significant at the 0.05 level (two-tailed); **Correlation is significant at the 0.01 level (two-tailed). SVA - Sagittal vertical axis; LL - Lumbar lordosis