Table 3.
Matched cohort demographics and injury characteristics
| Patients | PN injury (n = 20) | No injury (n = 20) | p value |
|---|---|---|---|
| Age (years; mean [range]) | 31 (15-52) | 30 (19-51) | 0.8 |
| Sex (male:female) | 18:2 | 18:2 | 1.0 |
| Mechanism | |||
| High velocity | 6 (30%) | 11 (55%) | 0.1 |
| Low velocity | 14 (70%) | 7 (35%) | |
| Unknown | 2 (10%) | ||
| Interval to surgery (days); mean (range) | 109 (1-451) | 107 (9-493) | 0.9 |
| Interval to surgery | |||
| Acute | 8 (40%) | 5 (25%) | 0.5 |
| Delayed (> 3 weeks) | 12 (60%) | 15 (75%) | |
| KD class | |||
| KD-I | 2 (10%) | 2 (10%) | 1.0 |
| KD-II | 0 | 0 | |
| KD-III(L) | 10 (50%) | 7 (35%) | |
| KD-IV | 5 (25%) | 8 (40%) | |
| KD-V | 3 (15%) | 3 (15%) | |
| Vascular injury | |||
| Yes | 7 (35%) | 1 (5%) | 0.05 |
| No | 13 (65%) | 19 (95%) | |
PN = partial nerve; KD = knee dislocation classification.