Table 1.
Descriptive data of all measurements including statistical correlation between direct measurements and CT evaluation (Bonferroni-correction to 0.0021 was applied)
| Minimum | R (p-value) | Maximum | R (p-value) | ||||
|---|---|---|---|---|---|---|---|
| Direct measurement | CT | Direct measurement | CT | ||||
| Radius head diameter (mm) | 23.2 ± 2.1 (19–26.5) | 23.1 ± 2.2 (18.7–26.7) | 0.926 (< 0.001) | 24.9 ± 2.1 (20.5–28) | 24.3 ± 2.1 (19.6–27.7) | 0.974 (< 0.001) | |
| Fibula head diameter (mm) | 28.9 ± 3.1 (24–35) | 29.3 ± 2.6 (25.4–33.6) | 0.921 (< 0.001) | 32.1 ± 3.1 (25–37) | 29.6 ± 3.4 (21.9–36.6) | 0.852 (< 0.001) | |
| 2nd metatarsal base diameter (mm) | 17.9 ± 2.1 (15–22.5) | 17.8 ± 1.7 (14.8–22.3) | 0.857 (< 0.001) | 22.9 ± 2.1 (19–27) | 23.8 ± 2.0 (19.8–27.75) | 0.841 (< 0.001) | |
| Radius head articular surface diameter (mm) | 17.1 ± 1.9 (13.5–21) | 16.9 ± 1.6 (14.3–20.1) | 0.848 (< 0.001) | 18.6 ± 1.9 (14–21) | 18.0 ± 1.4 (15–20.6) | 0.760 (< 0.001) | |
| Fibula head articular surface diameter (mm) | 14.7 ± 1.4 (12–17) | 13.9 ± 2.1 (10.6–18.5) | 0.508 (0.022)* | 17.6 ± 2.1 (15–22) | 17.6 ± 2.7 (11.2–21.4) | 0.625 (0.002) | |
| 2nd metatarsal articular surface diameter (mm) | 8.4 ± 0.9 (6.5–10) | 8.1 ± 1.4 (5.71–10.41) | 0.846 (< 0.001) | 20.4 ± 1.9 (16.5–25) | 20.8 ± 1.9 (16.3–24.6) | 0.870 (< 0.001) | |
| Radius neck diameter (mm) | 13.9 ± 1.4 (11–16) | 13.8 ± 1.4 (10.6–16.2) | 0.841 (< 0.001) | 13.7 ± 1.6 (10.5–16) | 14.3 ± 1.6 (10.8–16.5) | 0.794 (< 0.001) | |
| Fibula neck diameter (mm) | 13.0 ± 2.0 (10–19) | 13.3 ± 1.7 (10.5–17.3) | 0.171 (0.448)* | 12.8 ± 1.8 (10–16) | 13.1 ± 2.1 (10.2–17.3) | 0.614 (0.003)* | |
| 2nd metatarsal proximal metaphysis diameter (mm) | 8.8 ± 1.3 (6–11) | 8.9 ± 1.1 (7.2–11.4) | 0.720 (< 0.001) | 9.3 ± 1.3 (8–13) | 10.0 ± 1.1 (8.43–12.4) | 0.242 (0.279)* | |
| Direct measurement | CT | R (p value) | |||||
| Radius head height (mm) | 12.3 ± 0.9 (11–14) | 13.2 ± 0.9 (11.6–15) | 0.484 (0.022)* | ||||
| Fibula head height (mm) | 17.7 ± 1.4 (15–20) | 23.6 ± 2.2 (19.1–27.7) | 0.483 (0.031)* | ||||
| 2nd metatarsal base height (mm) | 17.1 ± 1.9 (13.5–20) | 19.1 ± 2.5 (13.2–23.6) | 0.729 (< 0.001) | ||||
| Photograph-evaluation | CT | R (p value) | |||||
| Radius articular facet radius (mm) | 21.1 ± 3.7 (15.5–30.4) | 18.7 ± 3.9 (14.5–30.35) | 0.805 (< 0.001) | ||||
| Fibula articular facet radius (mm) | 33.4 ± 10.9 (16.65–57.55) | 28.5 ± 8.9 (14.0–44.6) | 0.936 (< 0.001) | ||||
| 2nd metatarsal articular facet radius (mm) | 44.4 ± 14.9 (24.5–79.5) | 39.8 ± 12.4 (17.45–61.5) | 0.755 (< 0.001) | ||||
| Photograph-evaluation | |||||||
| Radius proximal articular surface area (mm2) | 458.4 ± 83.5 (299.6–591.2) | ||||||
| Fibula articular surface area (mm2) | 196.0 ± 44.0 (132.4–261.9) | ||||||
| 2nd metatarsal base articular surface area (mm2) | 194.4 ± 36.2 (115.1–253) | ||||||
| Radius articular facet angulation (°) | 93.0 ± 4.0 (86.26–100.7) | ||||||
| Fibula articular facet angulation (°) | 61.1 ± 8.7 (44.5–80.7) | ||||||
| 2nd metatarsal articular facet angulation (°) | 88.4 ± 4.1 (81.1–98.3) | ||||||
*No statistically significant correlation