[Retracted] Introducing V-Line as a New Strategy to Choose Surgical Corridor in Oblique Lumbar Interbody Fusion at the L5-S1 Segment

Table 4

Multivariate analysis of risk factors for V-line (+) during OLIF51.

Risk factor	Odds ratio	95% confidence interval
Sex	12.152	1.208-122.276	0.034
The left iliac vein position (VP)	265.085	16.629-4225.839	<0.001
Tilt angle of surgical corridor	0.750	0.632-0.890	0.001
Age	—	—	0.112
L5-S1 disk AP diameter	—	—	0.712
L5-S1 disk left-right diameter	—	—	0.970
Sacral slope	—	—	0.696
The iliocaval junction position (JP)	—	—	0.364