Table 4 Clinical and radiographic transverse plane asymmetry variables possibly affecting postoperative TPPR Increase.
Variable | All Patients N = 17 | No TPPR Increase (A) N = 10 | TPPR Increase (B) N = 7 | P a |
|---|---|---|---|---|
Thoracic Angle of Trunk Inclination (Bunnell): ° | ||||
Preoperative | 13 ± 4.14* | 12 ± 2.3 | 14 ± 6.2**** | ns |
Intermediate Follow-up | 7 ± 4.9 * | 8 ± 3.6 | 4 ± 6.0**** | ns |
Follow-up | 7 ± 4.0 ** | 8 ± 2.1*** | 5 ± 5.6**** | ns |
P b = Pre to Post: A, 0.0313; B, 0.0625 Post to FU: A, ns; B, ns | ||||
Thoracolumbar/Lumbar Angle of Trunk Inclination(ATI) (Bunnell): ° | ||||
Preoperative | 15 ± 5.2 | 13 ± 4.4 | 17 ± 5.4 | ns |
Intermediate Follow-up | 1 ± 1.9* | 0 ± 1.8 | 2 ± 1.8 | ns |
Follow-up | 2 ± 2.4** | 1 ± 1.8*** | 3 ± 3.0**** | ns |
P b = Pre to Post: A, 0.002; B, 0.0313 Post to FU: A, ns; B, ns | ||||
Thoracolumbar/Lumbar Apex Vertebra Rotation (Perdriolle): ° | ||||
Preoperative | 27 ± 6.8 | 24 ± 6.1 | 30 ± 6.6 | ns |
Lower Instrumented Vertebra +1 Rotation (Perdriolle): ° | ||||
Preoperative | 6 ± 4.1 | 6 ± 4.1 | 6 ± 4.3 | ns |
Postoperative | 5 ± 4.3 | 7 ± 4.1 | 2 ± 2.8 | 0.011 |
Follow-up | 4 ± 3.3 | 5 ± 3.7 | 3 ± 2.5 | ns |
P b = Pre to Post: A, ns; B, 0.0313 Post to FU: A, ns; B, ns | ||||