Information Gain & Material Analysis Biomechanical Engineering & Material Selection Matrix
When evaluating a Cervical Interbody Fusion Device, procurement teams must analyze how biomaterial traits impact long-term fusion success, imaging compatibility, and mechanical stability under repetitive neck motion.
Below is a comparative breakdown of key implant materials utilized by Orthi Medical Co., Ltd. in cervical interbody cage production, outlining mechanical parameters, radiological properties, and bone interface performance.
| Performance Property | PEEK-OPTIMA® Polymer | 3D Porous Trabecular Titanium | Titanium-Coated PEEK (Hybrid) |
| Elastic Modulus (GPa) | 3.6 GPa (Matches Cortical Bone) | 2.5 - 4.5 GPa (Architectural Porosity) | 3.6 GPa Core / High Surface Rigidity |
| Radiolucency (CT / MRI) | Excellent (Artifact-Free Visualization) | Radiopaque with minor scatter | Radiolucent Core / Thin Radiopaque Shell |
| Bone-Implant Interface | Mechanical Interlocking (Pyramidal Teeth) | Direct Cellular Osseointegration | Direct Surface Hydroxyapatite Bonding |
| Subsidence Risk Index | Low (Stress Shielding Prevention) | Very Low (Distributes Load Uniformly) | Low (Optimized Surface Footprint) |
| ASTM Testing Benchmark | ASTM F2077 / F2267 Standard Compliant | ASTM F2077 / ASTM F3001 Compliant | ASTM F2077 / ASTM F1044 Shear Compliant |
1. Load-Bearing Stability
Tested to resist over 5 million cycles of dynamic fatigue shear and axial compression under ASTM F2077, ensuring long-term structural integrity before osseous bridge formation completes.
2. Anatomical Lordosis Restoration
Offered in parallel and lordotic profiles (4°, 6°, 8°, 10°) to restore natural cervical sagittal alignment, intervertebral disc height, and neural foraminal clearance.
3. Large Graft Window Capacity
Central hollow cavity engineered to maximize autograft or allograft bone packing volume, facilitating rapid endplate-to-endplate vascularization and osteogenesis.