Spine surgeons have long sought a disc replacement that not only preserves motion but restores natural disc function—including shock absorption, axial compression, and segmental stability. The Freedom® Lumbar Disc (FLD) may finally deliver on that vision. 

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Unlike first-generation TDRs (like Charité or ProDisc), which rely on rigid metal-on-metal or metal-on-polyethylene articulations, the FLD uses a viscoelastic polymer core bonded to titanium plates. This design mimics the stiffness, load-sharing, and shock absorption of the healthy human disc in all planes of motion—flexion/extension, lateral bending, rotation, and compression. 

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Key Advances: 

• Viscoelastic design allows for dynamic stiffness, responding to changes in load and frequency—just like a natural disc. 

• One-piece core structure eliminates articulating surfaces that can wear or fail. 

• Axial and radial expansion enables compression and shock attenuation absent in traditional implants. 

 

 

In cadaveric models, motion quality and range at the implanted level closely mirrored that of intact segments, and biomechanical tests showed performance exceeding native disc strength without device failure. 

 

For surgeons and tech-forward investors, FLD represents the next evolution in arthroplasty: not just preserving motion but restoring function.