Table 3. Radiological Results and Comparison among Preoperative, Postoperative 1-Year, and at Maturity Data.
| Radiographic measurement | Preoperative | 1-Year postoperative | Maturity | Normal control | Preoperative vs. 1-year postoperative* | Preoperative maturity* | 1-Year postoperative maturity* | Normal maturity† |
|---|---|---|---|---|---|---|---|---|
| AP talo-first MTT angle (°) | 25.3 ± 6.8 | 8.57 ± 3.8 | 8.4 ± 3.1 | 6.28 ± 2.0 | <0.001 | <0.001 | 0.73 | 0.017 |
| AP talonavicular coverage angle (°) | 25.9 ± 8.6 | 9.42 ± 3.1 | 10.4 ± 2.7 | 8.40 ± 2.5 | <0.001 | <0.001 | 0.52 | 0.002 |
| AP talocalcaneal angle (°) | 30.5 ± 5.5 | 21.2 ± 6.7 | 21.4 ± 5.5 | 22.3 ± 4.7 | <0.001 | <0.001 | 0.77 | 0.47 |
| AP talo-fifth MTT angle (°) | 38.8 ± 5.8 | 31.5 ± 5.5 | 31.5 ± 5.3 | 30.4 ± 4.5 | <0.001 | <0.001 | 0.99 | 0.35 |
| Lateral talo-first MTT angle (°) | 27.2 ± 9.3 | 7.32 ± 2.7 | 7.25 ± 2.5 | 6.30 ± 2.6 | <0.001 | <0.001 | 0.85 | 0.13 |
| Lateral calcaneal pitch angle (°) | 6.32 ± 3.5 | 21.5 ± 3.3 | 22.1 ± 2.9 | 23.1 ± 2.7 | <0.001 | <0.001 | 0.11 | 0.14 |
| Lateral calcaneo-fifth MTT angle (°) | 14.4 ± 4.8 | 26.6 ± 5.0 | 27.2 ± 5.9 | 32.7 ± 5.0 | <0.001 | <0.001 | 0.28 | <0.001 |
| Lateral talocalcaneal angle (°) | 49.6 ± 8.2 | 39.2 ± 3.7 | 40.3 ± 5.2 | 41.8 ± 3.6 | <0.001 | <0.001 | 0.92 | 0.18 |
| Lateral talohorizontal angle (°) | 42.3 ± 9.9 | 25.4 ± 3.2 | 25.4 ± 3.6 | 26.8 ± 3.2 | <0.001 | <0.001 | 0.96 | 0.09 |
| Lateral fist-fifth MTT angle (°) | 9.3 ± 3.5 | 13.5 ± 3.9 | 14.2 ± 4.7 | 14.4 ± 3.0 | <0.001 | <0.001 | 0.13 | 0.88 |
| Lateral naviculo-cuboid overlap (%) | 78.4 ± 9.6 | 54.0 ± 10 | 53.7 ± 10 | 50.4 ± 12 | <0.001 | <0.001 | 0.83 | 0.24 |
| Medial-lateral column ratio (%) | 104.2 ± 3.3 | 103.5 ± 4.0 | 103.6 ± 4.1 | 103.8 ± 2.2 | 0.31 | 0.42 | 0.84 | 0.82 |
Values are presented as mean ± standard deviation.
AP: anteroposterior, MTT: metatarsal.
*Paired t-test. †Unpaired t-test between normal controls and triple C group patients at maturity.