Table 2 Intraoperative and postoperative complications
Complications | PFNA-II group (n = 72)a | IT group (n = 75)b | p |
|---|---|---|---|
Intraoperative complications | 18 | 13 | 0.255 |
 Improper placement of the device | 1 | 4 | 0.388 |
 Rotational loss of reduction | 9 | 0 | 0.005 |
 Penetrating the femoral head | 3 | 3 | 1.000 |
 Lateral greater trochanter fractures | 1 | 8 | 0.045 |
 Lateral cortex fractures of the proximal femur | 1 | 8 | 0.045 |
 Distal interlocking direction change | 2 | 2 | 1.000 |
Local complications | 20 | 10 | 0.030 |
 Necrosis of the femoral head | 2 | 3 | 1.000 |
 Varus collapse of the head/neck | 8 | 1 | 0.033 |
 Femoral shaft fractures | 8 | 1 | 0.033 |
 Cut-out | 6 | 0 | 0.033 |
 Severe lateral migration of the hip screw | 1 | 1 | 1.000 |
 Implant failure | 1 | 3 | 0.641 |
Pain of hip and thigh | 17 | 7 | 0.019 |
Femoral neck shortening, mm | 7.4 ± 2.4 | 4.4 ± 1.1 | 0.000 |
Mean healing time of bone | 15.7 ± 2.4 | 14.7 ± 2.1 | 0.010 |
Mean ± SD HHS | 83.8 ± 7.8 | 82.6 ± 7.1 | 0.302 |