Table 1.
Mean values and standard deviations before and after temporary hemi-epiphyseodesis using either the 8-plate or the Blount stapling technique
| n | Implantation | Explantation | Difference of mean (95% CI) | p value | |||
|---|---|---|---|---|---|---|---|
| 8-Plate | mLDFA (°) | Valgus | 19 | 84 ± 3 | 89 ± 3 | −5 (−7 to −4) | < 0.001 |
| Varus | 10 | 99 ± 8 | 90 ± 3 | 9 (2–16) | 0.018 | ||
| mMPTA (°) | Valgus | 16 | 93 ± 4 | 88 ± 4 | 5 (2–7) | 0.001 | |
| Varus | 12 | 83 ± 6 | 91 ± 2 | −8 (−11 to −5) | < 0.001 | ||
| MAD (cm) | Valgus | 21 | 2.9 ± 1.3 | −0.5 ± 1.7 | 3.4 (2.4–4.3) | < 0.001 | |
| Varus | 12 | −3.8 ± 2.0 | −0.2 ± 0.8 | −3.6 (−4.9 to −2.3) | < 0.001 | ||
| Blount stapling | mLDFA (°) | Valgus | 25 | 83 ± 3 | 89 ± 4 | −6 (−8 to −5) | < 0.001 |
| Varus | 4 | 93 ± 5 | 86 ± 6 | 7 (4–9) | 0.005 | ||
| mMPTA (°) | Valgus | 21 | 91 ± 5 | 87 ± 3 | 4 (2–6) | 0.001 | |
| Varus | 4 | 83 ± 2 | 85 ± 3 | −2 (−9 to 5) | 0.493 | ||
| MAD (cm) | Valgus | 27 | 3.0 ± 2.1 | −0.7 ± 1.0 | 3.6 (2.7–4.4) | < 0.001 | |
| Varus | 5 | −1.7 ± 0.8 | 0.4 ± 0.8 | −2.2 (−3.3 to −1.0) | 0.006 | ||