Distal Femoral Nail

The distal femoral nail (DFN) is an orthopedic implant used for the fixation of distal femoral fractures. Its main characteristics are:
Design and Dimensions:

• The DFN is available in various lengths (e.g., 160 to 420 mm) and diameters (e.g., 9.0 to 13.0 mm for the nail, and 13 mm for the proximal portion) to adapt to the patient’s anatomy.
• It can be curved to conform to the anterior femoral arch.

Locking and Stability:

Distal Locking: This allows for multiplanar fixation to increase stability, often with locking screws or spiral blades for a better contact surface.
Proximal Locking: Static and dynamic locking options are available, allowing immediate or secondary dynamization of the fracture.

Materials and Features:

• The DFN is designed to reduce friction and facilitate insertion through grooves, also increasing elasticity to avoid stress concentration.
• Short and long nails are available, with lateral or anteroposterior locking options depending on the length and fracture type.
• Some systems combine a nail and plate for more stable fixation in cases of complex fractures or poor bone quality, offering multiple fixation points.