Official Journal of the Italian Society of Orthopaedics and Traumatology
Table 4 Radiographic data and clinical outcomes of the trans-iliac trans-sacral screw group
Variables | Small pelvic incidence (N = 37) | Large pelvic incidence (N = 33) | p |
|---|---|---|---|
Pelvic incidence (degrees, mean ± SD) | 41.61 ± 5.27 | 56.18 ± 6.70 |  < 0.001* |
Sacral slope (degrees, mean ± SD) | 31.71 ± 5.73 | 42.25 ± 5.97 | 0.001* |
Pelvic tilt (degrees, mean ± SD) | 9.90 ± 5.10 | 13.93 ± 4.81 |  < 0.001* |
Sacral dysmorphism (N) | 18 | 5 | 0.003* |
Reduction quality | |||
 Matta/Tornetta criteria |  |  | 0.969 |
  Excellent (N) | 20 | 17 |  |
  Good (N) | 11 | 10 |  |
  Fair (N) | 6 | 6 |  |
 Matta/Tornetta vertical (mm, mean ± SD) | 6.68 ± 6.00 | 6.01 ± 4.79 | 0.609 |
 Lefaivre rotational (mm, mean ± SD) | 8.03 ± 5.78 | 9.91 ± 6.39 | 0.200 |
TITS screw level | |||
 S1 (N) | 4 | 12 | 0.011* |
 S2 (N) | 31 | 21 | 0.054 |
 S3 (N) | 2 | 0 | 0.494 |
TITS screw direction | |||
 Right/left (N, ratio) | 18/19 | 19/14 | 0.455 |
TITS screw length (mm, mean ± SD) | 122.84 ± 8.46 | 123.03 ± 6.37 | 0.916 |
TITS screw ADIO on mpCT | |||
 Coronal (degrees, mean ± SD) | 1.90 ± 1.81 | 2.28 ± 2.63 | 0.478 |
 Axial (degrees, mean ± SD) | 3.09 ± 2.59 | 3.04 ± 3.30 | 0.941 |
TITS screw perforation (N) | 5 | 11 | 0.049* |
Perforation into | |||
 Foramen/canal (N, ratio) | 0/5 | 5/6 | 0.034* |
Perforation grading | Â | Â | 0.188 |
 Grade 1 (N) | 0 | 1 |  |
 Grade 2 (N) | 3 | 4 |  |
 Grade 3 (N) | 2 | 6 |  |
 Revision (N) | 1 | 0 | 1.000 |
Postel Merle d’Aubigne score | |||
 At 6 months (mean ± SD) | 10.68 ± 2.62 | 11.00 ± 2.25 | 0.622 |
 At 1 year (mean ± SD) | 14.66 ± 2.65 | 15.00 ± 2.21 | 0.597 |
Majeed score | |||
 At 6 months (mean ± SD) | 53.71 ± 14.36 | 57.96 ± 13.96 | 0.249 |
 At 1 year (mean ± SD) | 73.49 ± 12.89 | 75.08 ± 11.39 | 0.617 |