Related Experiment Video
Updated: Apr 18, 2026
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Three-dimensional Navigation-guided, Prone, Single-position, Lateral Lumbar Interbody Fusion Technique
Published on: July 15, 2021
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Lumbar Interbody Cages: Design Characteristics, Biomaterials, Biomechanical Performance, Clinical Challenges, and
Adrian-Valentin Enache1, Antonio-Daniel Corlatescu2, Horia-Petre Costin2
1Doctoral School, Carol Davila University of Medicine and Pharmacy, Bucharest, ROU.
Cureus
|April 17, 2026
Summary
3D-printed porous titanium lumbar interbody cages show higher fusion rates and less subsidence than PEEK. While expandable cages aid disc height restoration, long-term studies are needed for personalized implant selection.
Area of Science:
- Spine surgery
- Biomaterials science
- Orthopedic implants
Background:
- Lumbar interbody cages are crucial for spinal fusion.
- Challenges include subsidence, migration, and pseudarthrosis.
- Advancements focus on biomaterials, design, and surface modifications.
Purpose of the Study:
- To review current data on lumbar cage design, biomaterials, biomechanics, and clinical outcomes.
- To synthesize evidence on recent innovations in lumbar interbody fusion.
- To evaluate the impact of implant characteristics on surgical performance.
Main Methods:
- Narrative review of current literature.
- Synthesis of data on cage design, materials, and biomechanical performance.
- Analysis of clinical outcomes and patient-reported results.
Main Results:
- 3D-printed porous titanium cages demonstrate higher fusion rates than PEEK cages.
- Titanium implants show reduced subsidence and reintervention rates.
- Expandable cages improve disc height restoration but lack proven clinical superiority over static cages.
Conclusions:
- Implant material, geometry, and surface properties critically affect cage performance.
- 3D printing, porous structures, and bioactive surfaces show promise for future implants.
- Long-term prospective studies are essential for guiding individualized lumbar interbody cage selection.
