Anatomical characteristics affecting the surgical approach of oblique lateral lumbar interbody fusion: an MR-based observational study

Table 3 Comparison of left psoas major muscle thickness among different vertebral segmentation

Intervertebral level	\(\overline{x} \pm s\) (mm)		Men versus women		Psoas major thickness
Intervertebral level	Men	Women	t	P	Psoas major thickness
L2–3	31.30 ± 4.52	25.55 ± 3.34	10.792	< 0.001	28.42 ± 5.08
L3–4	34.45 ± 4.94	27.07 ± 4.09	12.805	< 0.001	30.76 ± 5.84
L4–5	36.90 ± 7.20	27.42 ± 4.75	12.240	< 0.001	31.16 ± 7.72

P value less than 0.05 was marked with bold and regarded as have statistical significant

ISSN: 1749-799X