TABLE II.
Univariate Odds of Supracondylar Humeral Fractures Being Type IV (N = 38) Versus Type III (N = 156) on the Basis of Preoperative Radiographic Parameters*
| Parameter | OR (95% CI) | P Value |
| Angulation of distal fragment in sagittal plane | ||
| Extension | Referent | Referent |
| Flexion | 17 (4.9-59) | <0.001 |
| Neutral | 3.4 (0.3-39) | 0.33 |
| Angulation of distal fragment in coronal plane | ||
| Varus | Referent | Referent |
| Valgus | 5.6 (1.6-20) | 0.008 |
| Neutral | 2.3 (0.6-9.3) | 0.24 |
| Translation of distal fragment in coronal plane | ||
| Medial | Referent | Referent |
| Lateral | 4.1 (1.6-11) | 0.004 |
| None | 1.9 (0.7-5.5) | 0.25 |
| Osseous apposition between proximal and distal fragments | ||
| Absent | Referent | Referent |
| Present | 4.0 (1.8-9.0) | 0.001 |
| Propagation of fracture line toward diaphysis of proximal segment | ||
| Absent | Referent | Referent |
| Present | 9.2 (1.6-53) | 0.01 |
| Comminution | ||
| Absent | Referent | Referent |
| Present | 1.8 (0.7-4.5) | 0.22 |
| Fracture fragment abutting the skin | ||
| Absent | Referent | Referent |
| Present | 0.8 (0.3-2.1) | 0.63 |
*
OR = odds ratio, and CI = confidence interval.