Table 4.

Comparison of spino-pelvic sagittal balance parameters between 2 groups.

	OLIF	TLIF	P
PI°
Pre-op	54.67 ± 8.49	53.27 ± 6.36	.817
Post-op 1 wk	56.19 ± 8.94	58.58 ± 7.43	.699
Post-op 3 mo	56.19 ± 8.94	57.93 ± 7.26	.512
Post-op 6 mo	56.19 ± 8.94	57.33 ± 7.27	.402
PT°
Pre-op	24.25 ± 11.81	24.2 ± 9.38	.99
Post-op 1 wk	21.75 ± 10.86	20.27 ± 5.73	.21
Post-op 3 mo	22.13 ± 10.46	20.13 ± 5.67	.079
Post-op 6 mo	22.44 ± 9.99	21.2 ± 5.39	.11
SS°
Pre-op	29.69 ± 12.16	27.67 ± 5.39	.564
Post-op 1 wk	34.44 ± 9.56	32.73 ± 6.38	.575
Post-op 3 mo	34.06 ± 9.01	32.33 ± 6.27	.551
Post-op 6 mo	33.75 ± 8.81	32.27 ± 6.23	.619
LL°
Pre-op	31.93 ± 14.47	31.13 ± 10.74	.869
Post-op 1 wk	44.47 ± 13.10	35.07 ± 7.47	.028∗
Post-op 3 mo	43.0 ± 13.44	34.47 ± 7.09	.046∗
Post-op 6 mo	42.4 ± 13.26	34.07 ± 7.14	.049∗
FSL°
Pre-op	8.06 ± 4.99	6.2 ± 3.27	.248
Post-op 1 wk	13.31 ± 5.54	7.27 ± 4.12	.002∗
Post-op 3 mo	12.56 ± 5.26	7.33 ± 4.01	.006∗
Post-op 6 mo	12.38 ± 4.99	7.2 ± 4.02	.005∗