Table 1.
The Pre- and Postoperative Cervical, Thoracic, and Lumbopelvic Radiographic Parameters.
| Parameter | Preoperative | Postoperative | P |
|---|---|---|---|
| C2 slope | 16.9 (15.3) | 16.6 (11.5) | .942 |
| CL | −9.8 (16.5) | −12.2 (14.8) | .643 |
| CPA | 26.7 (14.5) | 22.3 (9.6) | .290 |
| CTPA | 1.7 (1.6) | 2.2 (1.4) | .385 |
| L1-L4 | −0.05 (14.4) | −10.4 (9.7) | .011* |
| L4-S1 | −26.4 (15.2) | −31.8 (10.7) | .205 |
| LL | −26.5 (19.1) | −42.1 (11.4) | .003* |
| PI | 51.6 (12.2) | 51.5 (12.2) | .981 |
| PI-LL | 25.1 | 9.3 (10.2) | .002* |
| SS | 26.5 (9.3) | 28.9 (9.2) | .429 |
| SVA | 67.5 (73.5) | 38.2 (37.6) | .122 |
| T1 SPI | 0.26 (7.1) | −2.4 (3.9) | .147 |
| T1 slope | 29.7 (16.4) | 29.9 (12.5) | .956 |
| T1-CL | 19.7 (14.7) | 17.9 (11.4) | .682 |
| T2-T5 | 14.4 (9.5) | 13.6 (9.4) | .783 |
| T5-T12 | 20.3 (13.1) | 34.5 (8.2) | <.001* |
| T9 SPI | −8.2 (6.1) | −12.1 (3.8) | .019 |
| TL | 5.8 (16.0) | 8.7 (13.1) | .526 |
| TPA | 25.3 (13.5) | 20.2 (8.7) | .166 |
| cSVA | 17.0 (13.7) | 20.4 (12.5) | .446 |
| TK (T4-T12) | 24.7 (13.8) | 38.3 (9.5) | <.001* |
| Instrumented TK | 3.8 (8.1) | 8.4 (7.1) | .057 |
| Uninstrumented TK | 20.9 (11.9) | 29.8 (9.6) | .014* |
| Pelvic tilt | 25.1 (9.6) | 22.7 (8.3) | .403 |
Abbreviations: CL, cervical lordosis; CPA, C2 pelvic angle; CTPA, cervicothoracic pelvic angle; LL, lumbar lordosis; PI, pelvic incidence; SS, sacral slope; SVA, sagittal vertical axis; SPI, spinopelvic inclination; TL, thoracolumbar kyphosis; TPA, T1 pelvic angle; cSVA, cervical sagittal vertical axis; TK, thoracic kyphosis.
* Statistically significant (P < .05).