Lordosis and posterior disc height on computed tomographic images.
| Time | Segmental Lordosis, ° | Lumbar Lordosis, ° | Posterior Disc Height, mm |
| Preop | 8.2 ± 4.1 | 41.0 ± 11.2 | 3.2 ± 1.6 |
| Postopa | 10.6 ± 2.9 | 43.1 ± 8.4 | 6.0 ± 1.7 |
| Fusionb | 10.4 ± 4.1 | 43.2 ± 11.0 | 5.9 ± 1.5 |
| P (preop vs postop) | 0.0078 | 0.3921 | <0.0001 |
| P (preop vs fusion) | 0.0330 | 0.4238 | <0.0001 |
| P (postop vs fusion) | 0.8198 | 0.9670 | 0.8008 |
Note: Data are mean ± SD.
aAt 6 wk postoperatively.
bAt the time of fusion (6 or 12 mo postoperatively).
postop, postoperative; preop, preoperative.