Table 3 Radiological results based on whether volar cortex was aligned or not after reduction
Volar cortex not aligned (n = 117) | Volar cortex aligned (n = 173) | Mean difference (95%CI) | p-value (Independent sample t-test) | |
|---|---|---|---|---|
Dorsal tilt (degrees) | ||||
Pre-reduction (range) | 112 (83–139) | 110 (83–134) | 2 (0–5) | 0.091 |
Post-reduction (range) | 90 (71–116) | 87 (75–101) | 3 (2–5) | < 0.001 |
Final follow-up (range) | 98 (68–131) | 97 (64–123) | 1 (( − 2)-4) | 0.467 |
Radial inclination (degrees) | ||||
Pre-reduction (range) | 15 (( − 3 to 29) | 18 (6) | − 3.0 ( − 4.6 to ( − 1.3)) | < 0.001 |
Post-reduction (range) | 22 (7–30) | 24 (4) | − 2.0 ( − 3.1 to ( − 1.0)) | < 0.001 |
Final follow-up (range) | 16 (0–31) | 20 (5) | − 3.4 ( − 4.9 to ( − 1.9)) | < 0.001 |
Ulnar variance (mm) | ||||
Pre-reduction (range) | 2 (0–7) | 1 ((− 1)-9) | 0.6 (0.2–1.0) | 0.007 |
Post-reduction (range) | 0 (( − 3 to 4)) | 0 ((− 3)-5) | 0.3 ( − 0.0 to 0.5) | 0.069 |
Final follow-up (range) | 3 (0–8) | 2 (0–7) | 1.0 (0.5–1.4) | < 0.001 |
Difference primary radiographs to final follow-up | ||||
Dorsal tilt (SD) | 14 (15) | 12 (14) | 1.2 ( − 2.5 to 5.0) | 0.513 |
Radial inclination (SD) | 1 (6) | 1.3 (6) | − 0.5 ( − 1.9 to 1.0) | 0.530 |
Ulnar variance (SD) | 1 (1.5) | 0.3 (1.3) | 0.4 (0.05–0.75) | 0.022 |