Table 1 Group differences (no rebound, rebound) in study population characteristics and radiographic parameters (n = 50) at the time of implantation and explantation of the plates.
Parameter | No Rebound | Rebound | p-Value |
|---|---|---|---|
Number of subjects | 28 | 22 | |
Sex [female/male] | 9(32%)/19(68%) | 8(36%)/14(64%) | 0.797 |
Time of implantation of the plates | |||
Anthropometric parameters | |||
Age [years/months] | 13/3 (1/2) | 12/8 (1/0) | 0.184 |
Height [m] | 1.68 (0.10) | 1.64 (0.10) | 0.211 |
Body mass index [kg/m2] | 22.91 (3.50) | 22.58 (3.79) | 0.768 |
X-ray parameters | |||
MAD [mm] | -23.0 (7.2) | -17.6 (5.6) | 0.011 |
MFA [°] | -6.6 (1.7) | -5.1 (1.7) | 0.006 |
Time of explantation of the plates | |||
Anthropometric parameters | |||
Age [years/months] | 14/3 (1/1) | 13/6 (1/1) | 0.054 |
Height [m] | 1.73 (0.11) | 1.69 (0.10) | 0.200 |
Body mass index [kg/m2] | 23.84 (4.12) | 23.56 (4.16) | 0.825 |
X-ray parameters | |||
MAD [mm] | -1.8 (7.5) | 2.4 (6.0) | 0.056 |
MFA [°] | -0.5 (2.1) | 0.6 (1.8) | 0.054 |
Implant localization | |||
Medial distal femur [number] | 18 | 17 | 0.347 |
Medial proximal tibia [number] | 4 | 3 | |
Medial distal femur and medial proximal tibia [number] | 6 | 2 | |
Duration of guided growth and growth characteristics of the study population | |||
Duration of guided growth [months] | 12.1 (5.1) | 9.9 (2.4) | 0.068 |
Growth between implantation and explantation of the plates [cm] | 5.1 (1.9) | 5.0 (1.7) | 0.818 |
Residual growth—from time of explantation to one-year follow-up [cm]* | 2.5 (1.4–4.2) | 5.9 (3.5–7.4) | 0.009 |
