Table 2.
Physiological value range | Femoral medial | Tibial medial | Tibial and Femoral medial | |
---|---|---|---|---|
Number | 34 | 23 | 36 | |
Girls absolute / % | 13 / 15% | 7 / 30% | 19 / 53% | |
Age at implantation median (min-max) | 13 +/− 1.63 years | 12 +/− 1.79 years | 12 +/− 1.79 years | |
Time to explantation in months median (min-max) | 14 +/− 5.05 months | 17 +/− 5.46 months | 13 +/− 7.33 months | |
Number of obesity absolute / % | 18 / 53% | 9 / 39% | 11 / 30,6% | |
Before surgery | ||||
anatomical femorotibial angle (aFTA) median (min-max) | 169 +/− 2.76 | 170 +/− 2.43 | 168 +/−2.88 | |
intermalleolar distance in cm median (min-max) | 12 +/− 2.5 | 11 +/− 2.34 | 12 +/−3.04 | |
anatomical lateral distal femoral angle (aLDFA) median (min-max) | 81 (79–83) | 77 +/−2.01 | 81 +/− 1.90 | 76 +/−3.25 |
medial proximal tibial angle (MPTA) median (min-max) | 87 (85–90) | 89 +/−0.98 | 92,5 +/−2.82 | 91 +/−4.75 |
at material removal | ||||
anatomical femorotibial angle (aFTA) median (min-max) | 177 +/−3.47 | 177 +/− 2.97 | 179 +/− 5.31 | |
intermalleolar distance in cm median (min-max) | 0 +/−2.85 | 0,25 +/− 2.37 | 0 +/−1.17 | |
anatomical lateral distal femoral angle (aLDFA) median (min-max) | 81 (79–83) | 84.5 +/−4.25 | 82 +/− 2.01 | 84.5 +/−2.88 |
medial proximal tibial angle (MPTA) median (min-max) | 87 (85–90) | 89 +/− 1.5 | 88 +/−2.51 | 88 +/−3.27 |
Recurrence absolute/ % | 1 / 2.9% | 1 / 4.3% | 2 / 5.5% | |
Overcorrection absolute/ % | 1 / 2.9% | 0 | 2 / 5.5% | |
Incomplete correction due to physiological growth gap closure absolute/ % | 2 / 5.9% | 2 / 8.6% | 2 / 5.5% |
Presented in the median (standard deviations) as well as absolute and percentage values