Table 1. Summary of demographic profile.

Dermographics	All patients	ALIF	OLIF	P—value
No. of patients	74	38	36	0.755
Age(years)	69 ± 8	67.4±7.6	69.7±6.9	0.063
Gender(M:F)	9:65	4:34	5:31	0.323
BMD T-score	− 2.4 ± 0.5	− 2.5 ± 0.3	− 2.4 ± 0.5	0.073
Follow-up (months) (mean ± SD)	33.3 ± 21.1	34.9±22.6	27.7± 21.7	0.062
Interbody fusion levels (mean ± SD)	3.02±1	2.92 ± 0.8	3.25 ± 1.2	0.026
Posterior fusion levels (mean ± SD)	5.4 ± 3.4	5.2 ± 3.6	5.7 ± 3.4	0.075
SVA (%)				0.622
≤10 cm	32	28.6	35.2
> 10 cm	68	71.4	64.8
PI-LL mismatch (%)				0.634
>10° but ≤20°	37.6	38.5	36.7
>20°	62.4	61.5	63.3
PT (%)				0.652
≤20°	27.2	23.1	31.3
>20° but <30°	45	46.2	43.8
≥30°	27.8	30.7	24.9