Introduction Due to the world’s aging population, intertrochanteric fractures are frequent. Considering age and comorbidi- ties of most of these patients, it is indispensable to enable early postoperative mobilization of these patients. Intramedul- lary osteosynthesis with PFN-A is widely used and, in general, considered safe and reliable for the operative treatment of intertrochanteric fractures. However, implant -related complications are reported in 6–21% of all cases. In this study, we are analyzing complication rates and risk factors for implant-related complications. Materials and methods All intertrochanteric fractures admitted to our hospital and treated with PFN-A between January 2012 and January 2016 were analysed retrospectively. Radiological analyses of the CCD and the lateral offset on the uninjured side was compared to the CCD initially postoperatively and during follow-up on the operated side. Furthermore, we analysed the tip-apex distance (TAD), blade position in the femoral head and introduced the nail–shaft axis as a new parameter. Results Within 101 intertrochanteric fractures included, 16 implant-related complications were encountered (15.84%). Analyses of risk factors for secondary varus displacement of greater than 10° within the follow-up and thus risk for cut-out in the osteosynthesis revealed that etasblished risk factors such as a TAD > 25 mm, reduction
Archives of Orthopaedic and Trauma Surgery – Springer Journals
Published: Dec 18, 2017
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