Table 1.
Comparison of the baseline data of the patients between the two groups
| Early group (n = 39) |
Delayed group (n = 32) |
p value | |
|---|---|---|---|
| Pipkin classification | 0.986 | ||
| Pipkin type I | 7 | 7 | |
| Pipkin type II | 16 | 12 | |
| Pipkin type III | 6 | 5 | |
| Pipkin type IV | 10 | 8 | |
| Age (years) | 42.6 ± 13.6 | 39.2 ± 12.7 | 0.275 |
| Gender (male/female) | 24/15 | 24/8 | 0.309 |
| Side(right/left) | 21/18 | 15/17 | 0.637 |
| Causes | 0.665 | ||
| Traffic accident | 29 | 23 | |
| Falling from height | 5 | 5 | |
| Heavy pound injury | 3 | 4 | |
| Sport injury | 2 | 0 | |
| Reduction method | 0.454 | ||
| Closed reduction | 36 | 27 | |
| Open reduction | 3 | 5 | |
| Time to reduction(hours) | 4.2 ± 1.2 | 10.0 ± 1.6 | <0.001 |
| Surgical approacha | |||
| Modified Heuter approach | 15 | 10 | 0.531 |
| Kocher-Langenbeck approach | 8 | 9 | |
| Operative time (min) | 146.5 ± 48.0 | 147.3 ± 54.6 | 0.945 |
| Blood loss (ml) | 305.6 ± 179.6 | 350.7 ± 214.3 | 0.338 |
| Follow-up duration (months) | 66.3 ± 8.4 | 67.9 ± 9.0 | 0.420 |
aPipkin type I and type II fractures