The Double Thread Polyaxial Screw 5.5mm Spine System Pedicle Screw is a specialized spinal fixation component designed for use in compatible posterior spinal instrumentation systems. Featuring a 5.5mm diameter, double-thread configuration, and polyaxial screw head, this pedicle screw is intended to provide controlled fixation within a spinal construct when used according to the applicable surgical technique and compatible instrumentation system.

Manufactured from Titanium Grade 5, the screw combines high mechanical strength with a relatively lightweight construction. Titanium is widely used in orthopedic and spinal implant applications because of its established material characteristics and suitability for implantable medical devices when manufactured and processed according to applicable requirements.

The polyaxial design allows the screw head to articulate relative to the threaded shaft, providing flexibility during rod alignment and construct assembly. This feature can help accommodate variations in spinal anatomy and facilitate positioning of the connecting rod during surgical fixation. The double-thread configuration is designed to support efficient engagement with bone according to the specifications of the particular screw system.

The 5.5mm pedicle screw is commonly associated with posterior spinal fixation constructs in which pedicle screws are connected using rods and other compatible components. Depending on the specific system and surgeon’s technique, pedicle screw systems may be used in procedures involving spinal stabilization, deformity correction, or other surgical indications requiring internal spinal fixation.

A precisely manufactured thread profile is important for consistent engagement with prepared bone. The screw should be inserted using compatible surgical instruments and according to the manufacturer’s recommended technique. Proper sizing, trajectory, placement, and compatibility with the remaining spinal fixation components should always be determined by a qualified healthcare professional.

The screw’s Titanium Grade 5 construction provides a combination of strength, durability, and corrosion resistance appropriate to the intended medical-device application. Its carefully engineered geometry supports integration with compatible polyaxial rod-based spinal systems.

This polyaxial pedicle screw is intended for professional surgical use and should be handled using appropriate sterile techniques. If supplied non-sterile, it should be cleaned, inspected, packaged, and sterilized according to validated procedures and applicable institutional requirements before use. Reusable status depends on the exact product configuration and manufacturer instructions; implantable components are generally supplied for their intended use according to applicable regulatory and manufacturer requirements.

For eCommerce and professional procurement, this 5.5mm Titanium Grade 5 pedicle screw is suitable for hospitals, orthopedic departments, spine surgery centers, surgical distributors, and medical equipment suppliers seeking compatible spinal fixation components. Buyers should verify dimensions, thread specifications, rod compatibility, and system compatibility before ordering.

Key Features

• 5.5mm diameter polyaxial pedicle screw design
• Double-thread configuration for controlled bone engagement
• Manufactured from Titanium Grade 5
• Designed for compatible spinal fixation systems
• Polyaxial head allows angular adjustment during construct assembly
• Suitable for rod-based posterior spinal instrumentation
• Lightweight titanium construction
• Designed for professional orthopedic and spine surgery use
• Precise threaded geometry for consistent placement
• Durable construction for intended medical-device applications
• Compatible instrumentation should be used for insertion
• Available as a spinal pedicle fixation component

Product Specifications

Product Contents

• 1 × Double Thread Polyaxial Pedicle Screw
• Diameter: 5.5mm
• Material: Titanium Grade 5

Rod, locking cap, instruments, and other spinal fixation components are not included unless specifically stated in the selected product configuration.

Applications

The 5.5mm polyaxial pedicle screw may be used as a component of compatible spinal fixation systems for procedures such as:

• Posterior spinal fixation
• Thoracolumbar spinal instrumentation
• Spinal stabilization procedures
• Spinal deformity correction constructs
• Fusion procedures requiring pedicle screw fixation
• Rod-based posterior spinal fixation
• Other procedures requiring compatible pedicle screw systems

Clinical application, anatomical level, screw dimensions, and surgical technique must be determined by a qualified healthcare professional.

FAQs

1. What is a 5.5mm polyaxial pedicle screw?

A 5.5mm polyaxial pedicle screw is a spinal fixation component designed to be inserted into a vertebral pedicle and connected with compatible spinal rods and fixation components.

2. What material is this pedicle screw made from?

This screw is manufactured from Titanium Grade 5, a titanium alloy commonly used in orthopedic and implant-related medical applications.

3. What does “polyaxial” mean?

Polyaxial refers to the articulated screw-head design, which allows the head to move through an angular range relative to the screw shaft to facilitate rod positioning and construct assembly.

4. What does the double-thread design mean?

The double-thread configuration refers to the screw’s engineered thread geometry. The exact thread profile and intended insertion characteristics depend on the specific spinal fixation system.

5. What procedures can use this pedicle screw?

It may be used as part of compatible spinal fixation constructs for procedures involving posterior spinal stabilization, spinal fusion, deformity correction, and other indicated spinal instrumentation procedures.

6. Is the screw compatible with every 5.5mm spine system?

No. Dimensional and system compatibility must be verified before use. The screw should only be used with compatible rods, locking components, and surgical instruments specified for the system.

7. Is this pedicle screw reusable?

Implantable spinal screws are not generally treated as reusable surgical instruments. Use, sterilization, and handling must follow the specific manufacturer’s instructions and applicable medical-device requirements.