Outcomes of distal femoral fractures treated with dynamic condylar screw (DCS) plate system: a single centre experience spanning 15 years

Introduction: the dynamic condylar screw (DCS) plate is an angular stable fixation (95 degrees) system for distal femur fractures that allows for the ability to apply compression across the femoral condyles. The aim of this study was to evaluate our experience treating distal femur fractures with this device and give the long-term outcome. Methods: a retrospective study was undertaken in our institution during the period from January 2002 to December 2016. A total number of 240 patients with distal femur fractures were managed using DCS plate system and included in the study. The mean follow-up period was 33 months (26 62 months). Clinico-radiological progression of fracture union as well as the functional outcome was studied. Results: most of the fractures were closed injuries in young male patients resulting from traffic accidents. The average time to union was 12.6 weeks (range 11 23). Eight patients (3.3%) suffered superficial infection. Five patients (2.1%) developed deep venous thrombosis. Delayed union was observed in nine cases (3.7%) and non union in six cases (2.5%). At final follow-up, the mean range of motion (ROM) of knee was 115.7 degrees (100 degrees-148 degrees). The mean Knee Society Score (KSS) was 84.5 (59 94) and the mean Lysholm score was 88.6 (range, 61 96), translating to good clinical results. Conclusion: our study conclusively establishes that excellent functional outcome can be achieved with DCS plate inserted with skilled surgical technique in distal femur fractures including the ones that are communited or occurring in osteoporotic bone with a negligible complication rates.