Table 2.
Results of conventional and three-dimensional analyses.
| Parameter | Absolut median (range) | Median (range) differences | p-value |
|---|---|---|---|
| Pre head–head med | 84.4 (76.3–94.4) | -1.9 (-13–8) | 0.131# |
| Post head–head med | 85.8 (76.0–100.3) | ||
| Pre head–head lat | 119.7 (105.3–130.1) | -0.4 (-7.9–6.1) | 0.183# |
| Post head–head lat | 121.2 (107.2–131.5) | ||
| Pre condyle angle right | 23.0 (11.0–37.0) | 0.0 (-26–23) | 0.142# |
| Post condyle angle right | 23.0 (11.3–43.0) | ||
| Pre condyle angle left | -22.0 [-32.0–(-7.0)] | 1.4 (22–34.5) | 0.042# |
| Post condyle angle left | -20.3 [-56.9–(-8.0)] | ||
| Parameter | Median (range) | Parameter | Median (range) |
| Pre-virt RMSE | 1.4 (0.4–7.2) | Pre-post RMSE | 2.2 (1.5–11.1) |
| Pre-virt MSD | 0.3 (-0.1–2.9) | Pre-post MSD | 0.5 (-0.6–6.1) |
| Pre-virt HD | 0.7 (0.1–3.1) | Pre-post HD | 1.5 (1.1–6.5) |
| Virt-post RMSE | 2.3 (1.3–10.7) | Diff RMSE pre-post vs. pre-virt | 0.7 (-2.7–10.5) |
| Virt-post MSD | -0.1 (-1.0–5.6) | Diff MSD pre-post vs. pre-virt | -0.1 (-1.3–6.0) |
| Virt-post HD | 1.7 (0.1–5.9) | Diff HD pre-post vs. pre-virt | 0.9 (-0.8–6.4) |
Head–head med/lat, medial/lateral horizontal distance between condylar heads; pre-virt, preoperative vs. virtual model; virt-post = virtual vs. postoperative model; pre-post = pre- vs. postoperative model; RMSE, root mean square error; MSD, mean surface distance; HD, Hausdorff distance; Diff, difference.
# Wilcoxon signed-rank test.