Fidji Lumbar Cages

Product Description

Fidji® Lumbar Cages


Poly-Ether-Ether-Ketone unique and unparalleled properties

PEEK interbody fusion cages are more than simple spacers permitting vascularization between vertebral endplates; they mediate the application of physiological load conditions to the bone graft.

This ensures continuity in the mechanical properties throughout the level involved, and consequently optimizes the conditions contributing to successful fusion.


Mechanical Tests

Posterior Cages (PLIF) Anterior Cages (ALIF)
Static Compression Test Yield Strength 7.8kN 18.9kN
Yield Displacement 2.1mm 1.2mm
Strength to Failure 10.1kN 31.7kN
Displacement to Failure 3.55mm 2.1mm
Dynamic Compression Test (5 Hertz) 5 million cycles under a load of 3.7kN 5 million cycles under a load of 8.9kN


  • This oversized simulation illustrates the transient change in Fidji PLIF cages under loads of 50 kg.


Shape and Design

  • A system striving for perfection in every detail!


  • three different angles for a better adaptation to the lordosis in the treated segment.


  • Convex shape and rounded edges to preserve the anatomy.


Radiopaque Markers

  • Direct identification of the cages due to radiopaque markers
  • Posterior : Vertical
  • Anterior : Horizontal

Primary Stability

  • Asymmetric, auto-static teeth against backing-out of the cage.
  • Fins for additional fixation in the vertebral endplates.


Secondary Stability

  • 60% of the space in the cage allow for graft impaction.
  • The Harmony™ Port System supports a minimally invasive approach while maximizing accessibility and visualization.




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