J Korean Fract Soc.  2016 Apr;29(2):128-136. 10.12671/jkfs.2016.29.2.128.

A Comparative Study of TRIGENâ„¢ INTERTAN Nail (InterTAN) and Proximal Femoral Nail Antirotation 2 (PFNA2) in the Patients with Intertrochanteric Fractures

• Jang JH
• Kim JI
• Kim UJ
• Moon NH

• KMID: 2162015
• DOI: http://doi.org/10.12671/jkfs.2016.29.2.128

Abstract

PURPOSE
The primary purpose of this study was to demonstrate that the TRIGENâ„¢ INTERTAN nail (InterTAN) could show better clinical outcome compared to the proximal femoral nail antirotation 2 (PFNA2) for treatment of intertrochanteric fracture in the elderly.
MATERIALS AND METHODS
Between March 2009 and December 2013, 164 patients with intertrochanteric fractures who met our inclusion and exclusion criteria were enrolled in this study. Evaluation variables, including operation time, blood loss during the operation, incidence of perioperative complications, clinical results at the last follow-up, and radiographic findings were assessed for comparison of the 2 implants.
RESULTS
Intraoperative lateral wall fracture was significantly higher in the PFNA2 group (p<0.05) and tip apex distance was significantly higher in the InterTAN group (p<0.05). Sliding of the proximal fragment at the last follow-up was significantly higher in the PFNA2 group. However, there was no significant difference in union rate, time to union, postoperative complications, and clinical outcomes at the last follow-up between the 2 groups.
CONCLUSION
Based on these data, clinical outcomes at the last follow-up were equivalent between InterTAN and PFNA2.

Keyword

Intertrochanteric fractures; PFNA2; InterTAN

MeSH Terms

Aged
Follow-Up Studies
Hip Fractures*
Humans
Incidence
Postoperative Complications

Figure

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  Fig. 1 Flow sheet of the study. PFNA2: Proximal femoral nail antirotation 2.

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  Fig. 2 (A) Preoperative hip anteroposterior (AP) radiograph of a 65-year-old male patient showing an intertrochanteric fracture (AO2-2) of the left proximal femur. (B) Postoperative radiograph showing Inter-TAN fixation of the intertrochanteric fracture. (C) At the last follow-up, union was achieved. (D) Preoperative hip AP radiograph of a 72-yearold male patient showing an intertrochanteric fracture (AO2-3) of the right proximal femur. (E) Postoperative radiograph showing proximal femoral nail antirotation 2 fixation of the intertrochanteric fracture. (F) At the last follow-up, union was achieved.

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  Fig. 3 (A) Intraoperative fluoroscopy of a 78-year-old female patient showing an anatomical reduction of an intertrochanteric fracture (AO1-2) of the right proximal femur before insertion of a helical blade. (B) Fluoroscopy showing an intraoperative lateral wall fracture (black arrow) during insertion of a helical blade.

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