Table 5 Logistic regression model of variables associated with intra-pedicular and proximal facet joint accuracy, respectively
Variables group | Raw OR (95% Cl) | Adjusted OR (95% Cl) | p |
|---|---|---|---|
Pedicle cortex penetration | |||
 Sex of male | 0.494 (0.263–0.925) | 0.320 (0.140–0.732) | 0.007 |
 Facet angle ≥ 45° | 0.241 (0.091–0.642) | 0.266 (0.090–0.786) | 0.017 |
 Depth of surgical field ≥ 4.5 cm | 0.173 (0.088–0.340) | 0.342 (0.134–0.868) | 0.024 |
 Lumbosacral instrumentation | 0.199 (0.095–0.417) | 0.227 (0.091–0.566) | 0.001 |
Facet joint violation | |||
 L5 insertion | 3.153 (1.785–5.572) | 2.020 (1.084–3.766) | 0.027 |
 Facet angle ≥ 45° | 2.197 (1.268–3.807) | 1.839 (1.026–3.298) | 0.041 |