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The Fenestrated Polyaxial Screw (Double Thread) is a specialized spinal fixation device designed to provide enhanced stability and anchorage in spinal surgeries. Featuring a fenestrated shaft, it facilitates the controlled injection of bone cement directly through the screw, significantly improving fixation in osteoporotic or compromised vertebral bone. The double-thread design of the screw ensures improved bone purchase by distributing load more evenly, thus enhancing pull-out strength and overall implant reliability. Its polyaxial head provides multi-directional flexibility, allowing surgeons to achieve precise rod placement and alignment during procedures. Constructed from premium biocompatible materials, this screw delivers excellent durability and corrosion resistance, making it an ideal choice for complex spinal fixation cases requiring cement augmentation.
Key Features
| Features | Description |
|---|---|
| Fenestrated Design | Enables controlled cement injection through the screw to improve fixation in weak bone. |
| Double-Thread Structure | Enhances bone purchase and pull-out strength for superior anchorage. |
| Polyaxial Head | Allows multi-directional movement for easy rod placement and accurate surgical alignment. |
| Material | Manufactured from high-grade, biocompatible, and corrosion-resistant materials. |
| Application | Optimized for spinal fixation in osteoporotic or compromised bone conditions. |
| Load Distribution | Double thread optimizes load sharing to reduce implant failure risks. |
| Surgical Flexibility | Facilitates precise adjustment during implantation for customized fit. |
| Attributes | Description |
|---|---|
| Screw Diameter | Available in multiple diameters ranging typically from 5.5mm to 7.5mm. |
| Length Options | Lengths ranging from 30mm to 50mm to accommodate various vertebral sizes. |
| Material | Titanium alloy (Ti-6Al-4V) or equivalent biocompatible grade. |
| Thread Type | Double-threaded with fenestrations for cement delivery. |
| Head Type | Polyaxial allowing up to 30 degrees of angulation. |
| Sterilization | Sterile, single-use implant. |
| Compliance | Meets international orthopedic implant standards. |
*Disclaimer: The above description has been AI-generated and has not been audited or verified for accuracy. It is recommended to verify product details independently before making any purchasing decisions.
The fenestrated design allows for controlled injection of bone cement through the screw’s fenestrations directly into the surrounding vertebral bone, enhancing fixation by reinforcing weak or osteoporotic bone and reducing the risk of screw loosening.
The double-thread structure improves bone purchase by increasing surface area contact and distributing mechanical loads more evenly, which significantly enhances pull-out strength and implant stability.
The polyaxial head provides angular flexibility up to 30 degrees, allowing surgeons to easily align rods and pedicle screws during implantation, which facilitates accurate spinal correction and decreases surgical complexity.
Yes, the polyaxial design is generally compatible with standard spinal rod systems, but compatibility should be verified with system specifications to ensure proper fit.
The screw is made from titanium alloy (Ti-6Al-4V) or equivalent biocompatible materials known for their strength, corrosion resistance, and biocompatibility, which minimize allergic reactions and enhance long-term implant integration.
Country Of Origin: India
The Fenestrated Polyaxial Screw (Double Thread) is engineered for spinal procedures requiring superior fixation, especially in osteoporotic or compromised bone conditions. The fenestrations allow controlled cement injection, improving screw anchorage and reducing the risk of loosening. Its polyaxial head provides flexibility for easy rod placement and accurate alignment during surgery. The double-thread design enhances pull-out strength and load distribution, ensuring stable fixation. Manufactured from high-grade, biocompatible materials, the screw offers durability, corrosion resistance, and consistent clinical performance.
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