Table 5.

Radiological outcomes in the two groups.

	Early (n = 25)	Late (n = 23)	P
Disc height, calibrated
Preoperative	26.59 ± 4.05	25.21 ± 4.38	.288∗
1 year	24.69 ± 3.32	23.11 ± 3.83	.200∗
Segmental angle (°)
Preoperative	8.11 ± 6.53	8.76 ± 6.76	.313∗
1 year	9.03 ± 5.43	9.76 ± 5.45	.185∗
Range of motion (°)
Preoperative	5.96 ± 5.12	9.54 ± 6.84	.100∗
1 year	5.66 ± 2.48	7.52 ± 7.95	.448∗
Total lumbar lordosis (°)
Preoperative	39.11 ± 12.05	38.41 ± 8.97	.838∗
1 year	39.36 ± 10.05	35.65 ± 10.14	.277∗

^∗Independent t test.