Table 4.
Fracture stability indicators in the occurrence and non-occurrence groups
| Item | Non-occurrence group (n=152) | Occurrence group (n=48) | t/χ2 | P |
|---|---|---|---|---|
| TAD (mm) | 20.34 ± 8.15 | 24.38 ± 8.43 | 2.924 | 0.005 |
| Nail length (mm) | 397.15 ± 48.26 | 401.28 ± 42.18 | 0.571 | 0.569 |
| Nail diameter (mm) | 11.35 ± 0.85 | 11.27 ± 0.79 | 0.584 | 0.561 |
| AO/OTA classification [n (%)] | 7.228 | 0.027 | ||
| A1 | 50 (32.89%) | 13 (27.08%) | ||
| A2 | 64 (42.11%) | 30 (62.50%) | ||
| A3 | 38 (25.00%) | 5 (10.42%) | ||
| Fracture type [n (%)] | 8.519 | 0.004 | ||
| Stable | 120 (78.95%) | 27 (56.25%) | ||
| Unstable | 32 (21.05%) | 21 (43.75%) |
TAD: tip-apex distance; AO/OTA: Arbeitsgemeinschaft für Osteosynthesefragen/Orthopedic Trauma Association.