Table 2.
List of the fracture sites.
| Left | Right | Total | % of midface fractures (%) | p value | |
|---|---|---|---|---|---|
| Nasal bone | x | x | 1405 | 40.4 | |
| Zygomatic bone | 471 | 361 | 832 | 23.9 | < 0.001 |
| Orbital floor | 394 | 306 | 700 | 20.1 | < 0.001 |
| Zygomatic arch, isolated | 85 | 67 | 152 | 4.4 | 0.038 |
| Le fort I | 60 | 56 | 116 | 3.3 | 0.599 |
| Le fort II | 34 | 31 | 65 | 1.9 | 0.599 |
| Dentoalveolar | x | x | 61 | 1.8 | |
| Maxillary sinus wall | 14 | 26 | 40 | 1.2 | 0.007 |
| Orbital roof | 14 | 21 | 35 | 1.0 | 0.094 |
| Naso-orbito-ethmoid, Type II | 9 | 11 | 20 | 0.6 | 0.527 |
| Naso-orbito-ethmoid, Type I | 8 | 6 | 14 | 0.4 | 0.449 |
| Orbito-ethmoid | 6 | 6 | 12 | 0.3 | 1 |
| Le fort III | 3 | 4 | 7 | 0.2 | 0.593 |
| Naso-orbito-ethmoid, Type III | 4 | 3 | 7 | 0.2 | 0.593 |
| Other upper jaw | 4 | 1 | 5 | 0.1 | 0.058 |
| Hard palate | 2 | 1 | 3 | 0.1 | 0.414 |
| Total | 3474 |
The p value refers to the difference between the left and right-sided fractures (χ2-test, confidence interval 95%). In the column [%] of midface fractures the proportion of fractures in a region in relation to all midface fractures are shown in percents.