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 .
Internal Fixation of Intertrochanteric Hip Fractures: A Clinical Comparison of Two Implant Designs
Objective . To compare two internal fixation devices clinical ly in stabilisation of intertrochanteric femur fractures . Methods . Eighty-seven patients were r and omised upon their admission to the hospital using a sealed envelope method . Forty-five were treated with proximal femur nail antirotation ( PFNA ) and 42 with reverse less invasive stabilisation system ( LISS ) . The perioperative data were recorded and compared in relation to fracture type . Results . In each type of fractures , no significant differences were found with respect to the blood loss , the quality of reduction , the time to bony healing , and the Harris hip score between the 2 groups . The mean duration of surgery was significantly longer in reverse LISS group than in PFNA group . Conclusion . Both the PFNA and the reversed LISS are effective in the treatment of different types of intertrochanteric femur fractures . PFNA is superior to reverse LISS in terms of surgical time , weight-bearing , and perhaps fluoroscopy time
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 .