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

Table 4 Comparison of insertion angle (β) among different vertebral segmentation

Intervertebral level	\(\overline{x} \pm s\) (°)		Male versus women		Insertion angle (β)
Intervertebral level	Men	Women	t	P	Insertion angle (β)
L2–3	48.22 ± 5.53	44.91 ± 6.40	4.361	< 0.001	45.57 ± 6.19
L3–4	52.73 ± 5.44	47.07 ± 6.31	7.572	< 0.001	49.90 ± 6.53
L4–5	46.95 ± 7.91	39.73 ± 8.33	6.995	< 0.001	43.34 ± 8.88

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

ISSN: 1749-799X