Femoral intramedullary nail

Unlike traditional plates placed externally on bones, intramedullary nails serve as an “internal support” positioned along the bone’s mechanical axis. This centralized fixation method minimizes the lever arm, providing exceptional resistance to bending and rotation. It allows patients to initiate functional exercises and partial weight-bearing early on, significantly accelerating recovery. Additionally, the procedure typically employs minimally invasive techniques, with insertion through small incisions distant from the fracture site. This approach maximally preserves blood supply and soft tissue integrity around the fracture, creating an optimal biological environment for bone healing. Consequently, the risk of infection and nonunion is significantly reduced.

Femoral intramedullary nail

1.5° valgus angle provides minimally invasive approach to the apex of greater trochanter.

2.The proximal trapezoidal section enhances the stability of the proximal femur.

3.Unique hairpin bifurcation design at the distal end to reduce stress concentration and avoid fractures around the distal prosthesis.

4.Dynamic or static locking can be selected for distal nail.

5.Unique combined compression interlocking nail design provides good stability and anti-rotation ability, controllable linear pressure effect.

Technical Specifications(Main nail)：

Mating Srew（6.4mm Locking Screw）

Mating Srew（4.7mm Locking Screw）

Conclusion

In summary, intramedullary nails achieve a balance between biomechanics and biology through central fixation and minimally invasive implantation. Among these, the PFNA’s helical blade design demonstrates distinct advantages in managing osteoporotic unstable fractures, while the InterTan excels in pursuing ultimate stability and controlled compression.