Predictors of accurate intrapedicular screw placement in single-level lumbar (L4-5) fusion: robot-assisted pedicle screw, traditional pedicle screw, and cortical bone trajectory screw insertion

Table 9 Logistic regression model of variables associated with superior facet violation

Risk factors	B value	p-value	Adjusted OR	95% CI
Age	0.038	0.003	1.039	1.013–1.065
PS	1.255	< 0.001	3.508	2.058–5.980
Superior facet angle	− 0.072	< 0.001	0.931	0.904–0.958
Pedicle cortex penetration	0.492	0.093	1.636	0.921–2.905

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