The clinical evidence behind the current implants used for proximal femoral fractures is weak considering the number of implants used worldwide .
Sporadic evaluation is not sufficient to identify long term problems .
INTRODUCTION Evaluation of the long-term performance of  implants used in trauma surgery relies on post-marked clinical studies since no registry based implant assessment exists .
The purpose of this study was to evaluate the evidence of performance of implants  currently used for treating proximal femoral fractures ( PFF ) in Denmark .
A Comparison of the Proximal Femoral Nail Antirotation Device and Dynamic Hip Screw in the Treatment of Unstable Pertrochanteric Fracture
This prospect i ve r and omized study compared the outcome of elderly patients with an unstable pertrochanteric fracture , treated with a proximal femoral nail antirotation device ( PFNA ; n = 51 ) or a dynamic hip screw ( DHS ; n = 55 ) . All patients in the DHS group and nine in the PFNA group had open reductions . Incisions were significantly shorter for the PFNA than the DHS group . Blood loss and the number of patients requiring postoperative blood transfusions were significantly greater , but operation and fluoroscopy times were significantly shorter , for the DHS versus the PFNA group . Time to mobilization with a frame was significantly shorter in the PFNA group , and post-operative complications were more common in the DHS group . Poor fracture reduction led to three revisions . All fractures in both groups united during follow-up . The PFNA allowed earlier mobilization and faster recovery than the DHS . The PFNA is a highly acceptable , minimally invasive implant for unstable fractures
The clinical evidence behind the current implants used for proximal femoral fractures is weak considering the number of implants used worldwide .
Sporadic evaluation is not sufficient to identify long term problems .
INTRODUCTION Evaluation of the long-term performance of  implants used in trauma surgery relies on post-marked clinical studies since no registry based implant assessment exists .
The purpose of this study was to evaluate the evidence of performance of implants  currently used for treating proximal femoral fractures ( PFF ) in Denmark .