Table 4.

Radiologic evaluation

	SA-OLIF (21 levels)	OLIF + LP (26 levels)	p value
Fusion levels, n
L3/4	3	7	0.475
L4/5	18	19
Cage size
Cage lordosis	6.6 ± 0.9	8.9 ± 3.0	0.001
Cage height	13.6 ± 1.0	13.6 ± 1.6	0.815
Cage length	53.3 ± 2.4	54.0 ± 3.7	0.328
Cage width	19.2 ± 1.9	20.5 ± 1.5	0.010
Disc height
Preop	9.4 ± 2.1	9.4 ± 2.4	0.992
Postop	12.8 ± 2.2*	12.6 ± 2.3*	0.775
Last follow-up	10.4 ± 2.8	11.0 ± 3.4*	0.537
Segmental lordosis
Preop	7.3 ± 2.9	6.7 ± 3.6	0.563
Postop	9.4 ± 2.3*	9.5 ± 3.4*	0.900
Last follow-up	8.8 ± 3.4	8.6 ± 3.8	0.951
Cage subsidence, n (%)
Grade 0 (0–24%)	17 (81.0)	21 (80.8)	0.984
Grade I (25–49%)	3 (14.3)	4 (15.4)
Grade II (50–74%)	1 (4.8)	1 (3.8)
Grade III (75–100%)	0 (0)	0 (0)

SA-OLIF: stand-alone oblique lumbar interbody fusion; OLIF + LP: oblique lumbar interbody fusion combined with lateral plate fixation

Bold means statistically significant

^*Means statistically significant, compared with preoperative data