Table 1.
Univariate comparison of the first and second metatarsal bone morphometric characteristics between deformed (n = 59) and control feet (n = 37)
| First metatarsal bone | Second metatarsal bone | |||||
|---|---|---|---|---|---|---|
| Outcomes in AP projection | Deformed feet | Control feet | p value | Deformed feet | Control feet | p value |
| Intramedullary thickness (mm) | 12.41 ± 1.29 | 12.31 ± 1.20 | 0.698 | 8.05 ± 0.91 | 8.00 ± 0.86 | 0.795 |
| Entire shaft thickness (mm) | 15.88 ± 1.64 | 15.63 ± 1.26 | 0.422 | 12.74 ± 1.39 | 12.46 ± 1.44 | 0.335 |
| Medial cortical thickness (mm) | 1.50 ± 0.33 | 1.45 ± 0.34 | 0.441 | 2.60 ± 0.57 | 2.39 ± 0.53 | 0.555 |
| Lateral cortical thickness (mm) | 1.97 ± 0.37 | 1.87 ± 0.43 | 0.242 | 2.09 ± 0.48 | 2.06 ± 0.54 | 0.500 |
| Medial CT/IMT (× 100) | 12.10 ± 2.35 | 11.92 ± 3.16 | 0.744 | 32.51 ± 6.83 | 29.93 ± 6.06 | 0.063 |
| Medial CT/EST (× 100) | 9.41 ± 1.63 | 9.28 ± 2.11 | 0.729 | 20.37 ± 3.58 | 19.10 ± 3.10 | 0.077 |
| Lateral CT/IMT (× 100) | 15.94 ± 3.00 | 15.40 ± 4.11 | 0.464 | 26.08 ± 5.71 | 25.85 ± 6.31 | 0.857 |
| Lateral CT/EST (× 100) | 12.39 ± 2.00 | 11.99 ± 2.68 | 0.396 | 16.36 ± 3.04 | 16.46 ± 3.26 | 0.883 |
| Outcomes in LL projection | ||||||
| Intramedullary thickness (mm) | 13.01 ± 1.34 | 13.08 ± 1.31 | 0.821 | 7.73 ± 0.97 | 7.47 ± 0.98 | 0.201 |
| Entire shaft thickness (mm) | 16.5 (15.4–17.3) | 16.3 (15.3–17.1) | 0.472 | 11.50 (10.50–12.40) | 11.20 (9.75–11.80) | 0.028 |
| Dorsal cortical thickness (mm) | 1.60 (1.30–1.90) | 1.50 (1.20–1.60) | 0.093 | 2.00 (1.90–2.50) | 1.60 (1.40–1.90) | <0.001 |
| Plantar cortical thickness (mm) | 1.60 (1.40–1.90) | 1.60 (1.25–1.70) | 0.056 | 1.70 (1.60–2.00) | 1.60 (1.30–1.90) | 0.051 |
| Dorsal CT/IMT (× 100) | 11.59 (10.24–13.79) | 11.71 (8.88–12.98) | 0.115 | 27.00 (24.00–30.16) | 22.73 (19.87–26.77) | <0.001 |
| Dorsal CT/EST (× 100) | 9.38 (8.22–10.81) | 8.72 (7.52–10.10) | 0.172 | 18.00 (16.00–20.00) | 15.45 (13.68–17.99) | <0.001 |
| Plantar CT/IMT (× 100) | 12.80 (10.71–15.04) | 11.69 (9.52–13.91) | 0.070 | 22.72 (19.28–26.15) | 20.78 (17.91–25.00) | 0.224 |
| Plantar CT/EST | 10.20 (8.93–11.80) | 9.73 (8.05–10.98) | 0.096 | 15.24 (13.22–17.39) | 14.52 (12.72–16.66) | 0.463 |
Intramedullary thickness (IMT), entire shaft thickness (EST) and cortical thickness (CT), determined at midpoint on anteroposterior (AP) and laterolateral (LL) X-ray images and indices calculated thereof are shown as mean ± SD or median (quartiles).