Table 4.
Long-term radiographic outcomes.
| Variable | ITa (n = 86) | PFNA-IIb (n = 88) | P-value |
|---|---|---|---|
| Screw cut-out | 1 | 2 | 1.000 |
| Prosthetic instability | 1 | 1 | 0.990 |
| Periprosthetic fracture | 0 | 1 | 1.000 |
| Lateral cortex fracture | 0 | 7 | 0.022* |
| Femoral shaft fracture after implant removal | 1 | 8 | 0.044* |
| Delayed union | 0 | 1 | 1.000 |
| Malunion | 2 | 0 | 0.243 |
| Nonunion | 1 | 1 | 0.990 |
| Migration of proximal screw(s) | 0 | 1 | 1.000 |
| Femoral head offset | 3 | 1 | 0.597 |
| Lower limb shortening (>1.5 cm) | 1 | 2 | 1.000 |
| Complications of distal interlocking | 0 | 1 | 1.000 |
| Heterotopic ossification | 1 | 1 | 0.990 |
| Avascular necrosis of the femoral head | 0 | 0 | 1.000 |
| Implant failure | 0 | 6 | 0.040* |
Data are presented as n.
*
Statistically significant values.
IT: INTERTAN nail; PFNA-II: proximal femoral nail anti-rotation-Asia; aSmith & Nephew, Memphis, TN; bSynthes, Solothurn, Switzerland