Essential details
MOQ:1
Product Introduction
Core FunctionThe Posterior Spinal Fixation System is a modular implant platform designed for posterior spinal surgery, delivering stable mechanical support to treat a wide range of spinal pathologies—including degenerative disc disease, trauma, tumors, spinal deformities (kyphosis/lordosis/scoliosis), pseudarthrosis, and failed prior fusions. It enables precise spinal reduction, segmental fixation, and bony fusion, restoring spinal alignment and long-term biomechanical stability.
Material Options
- Primary Material: Medical-grade Ti-6Al-4V ELI titanium alloy (compliant with ASTM F136 / ISO 5832-3), offering exceptional biocompatibility, low elastic modulus (~110 GPa, close to natural bone) to minimize stress shielding, and superior corrosion resistance.
- Optional Material: Co-Cr-Mo alloy for high-load revision cases, providing enhanced mechanical strength for severe bone defects.
- Surface Engineering: Bone-contacting surfaces feature porous titanium or hydroxyapatite (HA) coatings (50–200μm) to accelerate osseointegration; sandblasted finishes improve bone-implant interlocking; polished rod/connector surfaces reduce soft tissue irritation.
Design & System Configuration
The system uses a fully modular architecture, consisting of pedicle screws (monoaxial/polyaxial), spinal rods, laminar hooks, and transverse connectors—flexibly combinable to adapt to cervical, thoracic, and lumbar spinal segments:
- Polyaxial pedicle screws allow multi-angle adjustment for accurate implantation in complex anatomical structures.
- Spinal rods (5.5mm/6.0mm diameters) form the longitudinal framework, connecting screws/hooks to deliver rigid segmental fixation.
- Laminar hooks provide supplementary fixation for segments where pedicle screw placement is contraindicated.
- Transverse connectors link bilateral rod systems to enhance overall frame stability and prevent rotational instability.
Size Specifications
- Pedicle Screws: Diameter 3.5–6.5mm, length 25–60mm (cancellous/cortical thread options for varying bone density).
- Spinal Rods: Diameter 5.5mm/6.0mm, length 40–700mm (custom lengths available for complex spinal constructs).
- Modular Components: All hooks and connectors are standardized to match rod diameters, ensuring universal compatibility and intraoperative flexibility.
Key Advantages
- Modular Versatility: Flexible component combinations adapt to all clinical scenarios, from primary fusion to complex revision surgery.
- Biomechanical Optimization: Titanium alloy minimizes stress shielding, while the rigid frame design provides immediate and long-term stability to promote bony fusion.
- Enhanced Osseointegration: Advanced surface coatings accelerate bone ingrowth, reducing the risk of implant loosening and pseudarthrosis.
- Surgical Efficiency: Self-tapping screw design and color-coded components streamline intraoperative handling, shortening operative time.
- Compliance & Customization: ISO 13485 certified, meeting global orthopedic standards (ASTM F1717, ISO 12394). Full OEM customization is available for dimensions, materials, and branding, with low MOQ for prototyping and fast lead times for mass production.