Table 3.
Overview of nasopharyngeal airway changes stratified by preoperative and early/late postoperative imaging
| Characteristic | Preoperative CT imaging | Early postoperative imaging | Late postoperative imaging | p |
|---|---|---|---|---|
| Total airway volume (mm3) | 12,000 (7755–15,067) | 20,450 (16,970–22,590) | 27,570 (20,890–34,380) | < 0.001* |
| LeFort III | 12,420 (8728–19,758) | 22,340 (19,010–26,650) | 30,070 (21,850–34,600) | < 0.001* |
| Monobloc | 10,000 (7102–12,119) | 19,380 (16,140–21,910) | 21,564 (18,240–299,200 | < 0.001* |
| Monobloc with LeFort II | 8593 | 21,170 | - | - |
| Nasal airway volume (mm3) | 6665 (4656–9430) | 12,400 (10,580–13,900) | 21,460 (12,780–26,520) | < 0.001* |
| LeFort III | 7897 (6119–12,757) | 13,730 (11,330–16,670) | 23,850 (17,610–27,900) | < 0.001* |
| Monobloc | 5860 (4298–7924) | 12,100 (10,780–13,120) | 13,600 (9035–20,353) | 0.002* |
| Monobloc with LeFort II | 4409 (3996–6195) | 10,580 (7047–11,830) | - | - |
| Pharyngeal airway volume (mm3) | 4148 (2750–5571) | 8153 (6290–9015) | 5784 (3218–8516) | < 0.001* |
| LeFort III | 4457 (3281–5958) | 8968 (6814–10,220) | 5439 (3199–8652) | 0.005* |
| Monobloc | 3689 (2361–4467) | 7545 (5654–8286) | 6829 (5784–8039) | 0.012* |
| Monobloc with LeFort II | 4148 | 8088 | - | - |
| Anterior nasal spine-porion length | ||||
| Magnitude (mm) | 72 (66–77) | 91 (85–95) | 85 (80–99) | < 0.001* |
| Horizontal (mm) | 71 (66–76) | 91 (85–94) | 85 (80–97) | < 0.001* |
| Vertical (mm) | 9 (5–15) | 9 (6–13) | 11 (7–19) | 0.750* |
*p-values are from the Kruskal–Wallis test for non-parametric data, p < 0.05 is considered statistically significant