Comprehensive analysis of biomechanical stability and clinical efficacy in oblique lumbar interbody fusion with distinct anterolateral fixation modalities

OLIF-AF with parallel screw placement in the coronal plane (G0 and G1) reduced CS risk and enhanced biomechanical stability by minimizing cage stress, displacement, and ROM. Horizontal screw bifurcation (G1 vs G0) did not demonstrate a statistically significant association with CS risk. Furthermore, there were no significant differences in fusion rates or clinical outcome measurements at different angles of AF.