Open (n = 50) | MIS (n = 38) | P | |
---|---|---|---|
Anterior Disc Height | |||
 Preop | 0.51 ± 0.12 | 0.49 ± 0.12 | 0.355 |
 6 months postop | 0.58 ± 0.11* | 0.51 ± 0.10 | 0.002 |
 Difference | 0.07 ± 0.12 | 0.02 ± 0.11 | 0.050 |
 Difference ratio (%) | 18.54 ± 31.59 | 6.71 ± 22.28 | 0.053 |
Posterior Disc Height | |||
 Preop | 0.25 ± 0.06 | 0.25 ± 0.07 | 0.982 |
 6 months postop | 0.31 ± 0.08* | 0.32 ± 0.10* | 0.717 |
 Difference | 0.06 ± 0.09 | 0.07 ± 0.09 | 0.727 |
 Difference ratio (%) | 34.44 ± 47.20 | 34.64 ± 42.68 | 0.984 |
Mean Disc Height | |||
 Preop | 0.38 ± 0.8 | 0.37 ± 0.08 | 0.373 |
 6 months postop | 0.45 ± 0.08* | 0.41 ± 0.09* | 0.067 |
 Difference | 0.07 ± 0.09 | 0.05 ± 0.08 | 0.222 |
 Difference ratio (%) | 21.30 ± 32.73 | 14.35 ± 20.88 | 0.231 |
Segmental Lordosis (°) | |||
 Preop | 9.05 ± 5.63 | 7.36 ± 3.07 | 0.092 |
 6 months postop | 12.34 ± 4.74* | 10.24 ± 4.79* | 0.043 |
 Difference | 3.29 ± 5.71 | 2.88 ± 5.48 | 0.733 |