Table 2 Mean sagittal parameters measured on supine low dose CT scans before surgery (degrees ± standard deviation) and at 2 years after surgery for 30 patients who underwent TASF for progressive scoliosis (note: positive angles represent kyphosis and negative angles represent lordosis)
Sagittal Cobb angle (°) | Before surgery | 2 years after surgery | Difference (°) | Significance | |
|---|---|---|---|---|---|
T5 - T12 | CT | 10.3 ± 7.5 | 22.8 ± 9.8 | +12.5 | p < 0.001 |
|  | (X-Ray) | *15.6 ± 9.6 | *27.4 ± 9.0 | +11.8 | p < 0.001 |
T2 - T12 | CT | 18.5 ± 8.7 | 26.9 ± 9.9 | +8.4 | p < 0.001 |
Instrumented | CT | 8.3 ± 6.8 | 22.5 ± 10.3 | +14.2 | p < 0.001 |
Levels | (X-Ray) | *11.6 ± 7.5 | 23.6 ± 8.7 | +12.0 | p < 0.001 |
T2 - T5 | CT | 8.1 ± 5.4 | 3.9 ± 5.0 | −4.2 | p < 0.001 |
T10 - L2 | CT | 1.5 ± 6.8 | 3.4 ± 7.6 | +1.9 | p = 0.16 |
|  | (X-Ray) | −2.8 ± 7.1 | 2.9 ± 7.0 | +5.7 | p < 0.001 |
Distal to Rod | CT | 2.1 ± 5.0 | 2.7 ± 4.6 | +0.6 | p = 0.57 |
|  | (X-Ray) | 0.5 ± 3.6 | 1.5 ± 3.4 | +1.0 | p = 0.20 |
T12 - S1 | CT | −51.1 ± 8.4 | −57.3 ± 10.8 | +6.2 | p < 0.001 |
|  | (X-Ray) | *-56.2 ± 9.5 | *-62.1 ± 9.5 | +5.9 | p < 0.001 |