Table 1 Univariate analysis of risk factors for the failure of closed reduction
From: Predictive factors for open reduction of flexion-type supracondylar fracture of humerus in children
ORIF (35) | CRIF (136) | χ2 | P | |
|---|---|---|---|---|
Sex | 0.622 | 0.430 | ||
Female | 17 | 56 | ||
Male | 18 | 80 | ||
Injury side | 0.267 | 0.606 | ||
Left | 14 | 48 | ||
Right | 21 | 88 | ||
Age | 3.974 | 0.047† | ||
≥ 10 yrs | 15 | 35 | ||
< 10 yrs | 20 | 101 | ||
Obesity | 0.785 | 0.376 | ||
Yes | 7 | 19 | ||
No | 28 | 117 | ||
Delayed time to operation | 1.943 | 0.163 | ||
≥ 36 hours | 19 | 56 | ||
< 36 hours | 16 | 80 | ||
Fracture deviation | 3.329 | 0.068 | ||
Medial | 1 | 19 | ||
Lateral | 34 | 117 | ||
Ulnar never injury | 21.744 | 0.001† | ||
Yes | 13 | 7 | ||
No | 22 | 129 | ||
Fracture level | 2.030 | 0.154 | ||
High | 28 | 92 | ||
Low | 7 | 44 | ||
Rotation | 6.811 | 0.009† | ||
Yes | 30 | 85 | ||
No | 5 | 51 |