Official Journal of the Italian Society of Orthopaedics and Traumatology
Table 1 Patient characteristics of the iliosacral screw group
Variable | Small pelvic incidence (N = 41) | Large pelvic incidence (N = 24) | p |
|---|---|---|---|
Basic data | |||
 Male/female (N, ratio) | 23/18 | 15/9 | 0.613 |
 Age (years, mean ± SD) | 33.27 ± 16.65 | 40.38 ± 18.60 | 0.117 |
 Body mass index (kg/m2, mean ± SD) | 23.01 ± 4.48 | 24.93 ± 4.39 | 0.097 |
Injury-related variables | |||
 Associated injuries | |||
  Brain (N) | 9 | 3 | 0.511 |
  Chest (N) | 13 | 9 | 0.634 |
  Abdomen (N) | 11 | 3 | 0.222 |
  Urogenital (N) | 9 | 7 | 0.515 |
  Extremities (N) | 23 | 14 | 0.861 |
  Spine (N) | 5 | 0 | 0.149 |
 AO/OTA classification |  |  | 0.330 |
  B1 (N) | 1 | 0 |  |
  B2 (N) | 13 | 12 |  |
  B3 (N) | 18 | 5 |  |
  C1 (N) | 4 | 5 |  |
  C2 (N) | 3 | 0 |  |
  C3 (N) | 2 | 2 |  |
 Tile classification |  |  | 0.353 |
  A (N) | 1 | 0 |  |
  B (N) | 31 | 17 |  |
  C (N) | 9 | 7 |  |
 Young–Burgess classification |  |  | 0.699 |
  APC (N) | 23 | 11 |  |
  LC (N) | 16 | 9 |  |
  VS (N) | 2 | 4 |  |
 Acetabular fracture (N) | 7 | 6 | 0.441 |
 Morel Lavallee (N) | 3 | 6 | 0.066 |
 ISS (mean ± SD) | 24.20 ± 12.90 | 17.79 ± 12.92 | 0.058 |
 NISS (mean ± SD) | 26.73 ± 13.73 | 23.75 ± 16.46 | 0.436 |
 Open fracture (N) | 4 | 2 | 1.000 |
Surgery-related variables | |||
 Injury-to-surgery interval (days, mean ± SD) | 8.05 ± 4.04 | 8.25 ± 6.46 | 0.882 |
 Surgical position | |||
  Supine/prone (N, ratio) | 30/11 | 16/8 | 0.578 |
  Open/closed reduction (N, ratio) | 13/28 | 7/17 | 0.830 |