| | Non-augmentation group, GP1 (n = 88) | Augmentation group, GP2 (n = 17) | p-value† | p-value‡ |
|---|
| After surgery | At 6 months | p-value | After surgery | At 6 months | p-value |
|---|
| For all patients with distal radius fracture |
| *X/Y | 3.56 | (3.42, 3.74) | 3.46 | (3.34, 3.61) | < 0.001** | 3.54 | (3.36, 3.61) | 3.42 | (3.30, 3.53) | 0.001** | 0.399 | 0.289 |
| Volar tilting | 11.00 | (9.00, 13.00) | 11.00 | (8.00, 13.00) | 0.366 | 11.00 | (7.00, 12.50) | 10.00 | (7.00, 13.00) | 0.749 | 0.240 | 0.281 |
| Radial inclination | 22.00 | (19.00, 24.00) | 22.00 | (20.00, 24.00) | 0.171 | 22.00 | (19.0, 24.00) | 21.00 | (19.50, 22.50) | 0.233 | 0.730 | 0.278 |
| Radial height/Ra | 0.57 | (0.44, 0.66) | 0.54 | (0.39, 0.64) | < 0.001** | 0.52 | (0.43, 0.57) | 0.45 | (0.37, 0.57) | 0.039* | 0.171 | 0.196 |
| For patients with comminuted fractures |
| GP1, (n = 38) | GP2 (n = 16) |
| X/Y | 3.60 | (3.48, 3.75) | 3.54 | (3.38, 3.64) | < 0.001** | 3.52 | (3.35, 3.61) | 3.42 | (3.29, 3.54) | 0.001** | 0.094 | 0.099 |
| Volar tilting | 11.00 | (8.75, 13.00) | 10.50 | (8.00, 12.00) | 0.098 | 11.00 | (7.25, 12.75) | 10.00 | (7.00, 13.00) | 0.497 | 0.402 | 0.621 |
| Radial inclination | 22.00 | (19.00, 24.25) | 22.00 | (20.00, 24.25) | 0.697 | 21.50 | (19.00, 23.00) | 21.00 | (19.25, 22.00) | 0.431 | 0.458 | 0.282 |
| Radial height/R | 0.59 | (0.43, 0.65) | 0.54 | (0.39, 0.65) | 0.002** | 0.52 | (0.46, 0.57) | 0.46 | (0.41, 0.57) | 0.063 | 0.215 | 0.384 |
- Mann-Whitney U test, median (interquartile range). Wilcoxon signed rank, *p < 0.05, **p < 0.01
- †After surgery: non-augmentation vs. augmentation
- ‡At 6 months: non-augmentation vs. augmentation
- *X was defined as the distance of the tip of the dorsal cortex to the 2nd distal locking screw
- Y was defined as the distance from the distal 1st to the distal 2nd locking screw, which should be fixed between the images immediately and at 6 months after surgery. The ratio X/Y for statistical analysis can eliminate magnification error
- a R was defined as the distance from the distal 1st locking hole to the distal 2nd locking hole on the anteroposterior (AP) view, which should be fixed between the images immediately and at 6 months after surgery
- The ratio Radial Height/R for statistical analysis can eliminate magnification error
