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Table 3 The main results of the research

From: Proximal femoral nails anti-rotation versus dynamic hip screws for treatment of stable intertrochanteric femur fractures: an outcome analyses with a minimum 4 years of follow-up

Variable PFNA (n = 110) DHS (n = 112) P value
Total complications 25 50  
Patients affected 18 (16.4 %) 39 (34.8 %) 0.002
 Medical complications 7 8  
 Patients affected 6 (5.5 %) 6 (5.4 %) 0.974
  Pressure sore 2 3  
  Pulmonary infection 1 1  
  Urinary tract infection 1 1  
  Deep venous thrombosis 1 1  
  Atrial fibrillation 1 1  
  Acute renal failure 0 0  
  Other 1 1  
 Orthopaedic complications 18 42  
 Patients affected 12 (10.9 %) 33 (29.5 %) 0.001
  Periprosthetic fracture 1 5  
  Femur shaft fracture after implant removed 3 10 0.049
  Prosthetic instability 1 4  
  limb length discrepancy (>2.5 cm) 1 1  
  Malunion 1 2  
  Nonunion 2 4  
  Cutout 1 3  
  Abductor tendon deficiency 3 2  
  Heterotopic ossification 1 2  
  Intraoperative nerve injury 1 3  
  Implant failure 1 1  
  Aseptic loosening 0 1  
  Periprosthetic infection 1 2  
  Osteolysis with well-fixed implants 0 1  
  Wound infection 1 1  
Reoperation required in one year follow-up 0(0.0 %) 6(5.4 %) 0.029
Reoperation required in two years follow-up 1(0.9 %) 4(8.9 %) 0.035
Reoperation required in three years follow-up 1(1.8 %) 2(10.7 %) 0.006
Reoperation required in four years follow-up 3(4.5 %) 2(12.5 %) 0.034
Reoperation required at last follow-up 2(6.4 %) 1(13.4 %) 0.080