Table 2.
Radiographic outcomes.
| Variable | Radiograph overlay, N = 94 | Transverse rod, N = 106 | P-value |
|---|---|---|---|
| Leg-length discrepancy (mm)a (parametric testing) | 4.8 (3.7) | 4.4 (3.1) | .424 |
| Leg-length discrepancy (mm)b (nonparametric testing) | 3.9 (1.8-7.2) | 3.8 (1.9-6.5) | .628 |
| Leg-length discrepancy <5 mmc | 59.6% (56) | 57.5% (61) | .772 |
| Leg-length discrepancy <10 mmc | 90.4% (85) | 95.3% (101) | .179 |
| Offset discrepancy (mm)a (parametric testing) | 5.1 (4.4) | 4.8 (4.0) | .668 |
| Offset discrepancy (mm)b (nonparametric testing) | 4.1 (1.9-7.2) | 3.9 (1.8-6.7) | .732 |
| Offset discrepancy <5 mmc | 57.4% (54) | 62.3% (66) | .488 |
| Offset discrepancy <10 mmc | 89.3% (84) | 88.7% (94) | .878 |
a
Student t-test, mean (standard deviation).
b
Wilcoxon rank-sum test, median (interquartile range).
c
Chi-square test, % (n).