ArticleCureus2025
Functional Outcome of Distal Femur Nail Multilocking (DFN-ML) in Distal Third Femur Fractures.
Article in Cureus, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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3 authors.
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Abstract
Background Distal femur fractures (DFFs) are relatively common injuries, particularly in younger individuals due to high-energy trauma and in older individuals due to lower-force events and poor bone quality. Distal femur nail multilocking (DFN-ML) is a less commonly reported method of fixation with potential biomechanical advantages. This method involves the use of an intramedullary nail that has multiple directional locking screws, which provide better stability and fixation compared to conventional plating and nailing methods. Objective The present study aimed to evaluate the functional outcome of patients treated with DFN-ML for distal third femur fractures. Methodology A total of 31 patients with distal third femur fractures were included in the study. Preoperatively, patients were evaluated to classify the fracture according to the Arbeitsgemeinschaft für Osteosynthesefragen/Orthopaedic Trauma Association (AO/OTA) classification. Range of movement exercises were started from postoperative day (POD) 3, and partial weight-bearing was started from POD 4. Functional outcomes were assessed using the Lysholm Knee Scoring Scale at four, eight, and 12 weeks postoperatively. Results The mean age of the patients was 43.55±21.52 years. The majority of the patient population was male (71%). Road traffic accident (RTA) was the most common injury mode reported in 58.1% of cases. The mean Lysholm score increased significantly from four weeks (22.10±13.41) to eight weeks (41.06±15.28) and 12 weeks (80.65±12.24). Postoperative complications were observed in six (19.4%) patients. Conclusion The DFN-ML technique appears to offer sufficient stability, high union rates, and early mobilization for the treatment of DFFs. Our findings suggest that DFN-ML is a viable method that may promote fracture healing by providing robust fixation and enabling early mobilization. Larger multicentric studies with longer follow-up are recommended to validate these results.
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