5.5 Polyaxial Short Tail Pedicle Screw
The 5.5 mm polyaxial short-tail pedicle screw provides low-profile, ±25° angulation, titanium, MRI-safe, self-tapping fixation.
| Model | 5.5 Polyaxial Short-Tail Pedicle Screw |
| Brand | Davinmed |
| Applicable Region | Thoracolumbar Spine |
| Application | Thoracolumbar Spinal Fusion |
| Material | Medical-Grade Titanium Alloy |
| MOQ | 1 Piece |
| Dispatch Time | Within 72 Hours for Standard Products |
| Certifications | CE, ISO 9001, ISO 13485, etc. |
| OEM/ODM Services | Laser marking, customized anodized colors, and custom packaging |
| Clinical Support | Complimentary surgical videos, user manuals, and technical guidance |
| Customization Lead Time | Within 15 Days, Excluding Shipping Time |
| Shipping Methods | FedEx, DHL, TNT, EMS, and Other International Couriers |
Davinmed · Spinal Fixation Components
5.5 Polyaxial Short-Tail Pedicle Screw
The Davinmed 5.5 polyaxial short-tail pedicle screw has an adjustable head for posterior spinal screw–rod fixation.
The polyaxial head allows angulation relative to the screw shaft before final locking, helping accommodate rod alignment. The permitted angulation and locking sequence depend on the selected system.
For orthopedic distributors, medical device importers and hospital procurement teams, product selection should identify the screw diameter, shaft length, matching locking component and instrument requirements.
Product Design
Polyaxial Head Design & Size-Based Selection
Polyaxial Configuration
The head can angulate relative to the screw shaft before final locking, providing flexibility during rod alignment. Use the adjustment range and locking sequence specified for the selected system.
Short-Tail Configuration
“Short tail” identifies the upper head configuration. It does not describe the length of the threaded screw shaft, which is specified separately.
Defined Diameter–Length Combinations
Use the size table to prepare a reference-based enquiry. Specify quantities for each required diameter and length rather than a single total.
Component Matching
Screw Head & Locking Set Screw
The polyaxial screw head, rod and locking set screw work as a matched assembly. Head angulation is available before final locking; use the specified locking component and system tightening sequence.
- Confirm the head configuration and complete product reference.
- Verify the approved rod diameter and material.
- Specify the matching locking set screw and driver interface.
- Confirm whether locking components are included in the quotation or supplied separately.
Similar appearance does not establish interchangeability. Use only documented component combinations and the applicable system instructions.
Technical Specifications
5.5 Polyaxial Short-Tail Pedicle Screw Size Enquiry
Use the diameter and length combinations below as an enquiry checklist. These sizes are carried over from the previous product table and require confirmation for the 5.5 polyaxial short-tail model before ordering.
| Screw Diameter | Lengths to Confirm | Listed Length Step |
|---|---|---|
| 4.0 mm | 25, 30, 35, 40, 45 mm | 5 mm |
| 4.5 mm | 25, 30, 35, 40, 45 mm | 5 mm |
| 5.0 mm | 25, 30, 35, 40, 45 mm | 5 mm |
| 5.5 mm | 25, 30, 35, 40, 45, 50 mm | 5 mm |
| 6.0 mm | 30, 35, 40, 45, 50, 55 mm | 5 mm |
| 6.5 mm | 30, 35, 40, 45, 50, 55 mm | 5 mm |
| 7.0 mm | 30, 35, 40, 45, 50, 55 mm | 5 mm |
The 5.5 series designation is separate from the screw shaft diameter. Confirm the compatible rod specification, current product reference and stock availability when requesting a quotation.
System Configuration
Selection for a Posterior Screw–Rod Construct
Pedicle screws provide bony anchorage within a posterior spinal fixation construct. The complete system determines the available component combinations and intended use.
For thoracolumbar procurement, verify the intended anatomical levels and indications against the applicable system instructions for use. Clinical selection depends on patient anatomy, imaging and the surgeon’s construct plan.
| Selection Item | Required Information |
|---|---|
| Pedicle Screw | Polyaxial short-tail configuration, product reference, screw diameter, shaft length and head angulation range. |
| Rod | Approved diameter, material and compatibility with the selected screw head. |
| Locking Component | Matching set screw, driver interface and applicable tightening instructions. |
| Supply Condition | Sterile or non-sterile status, packaging, labelling and applicable instructions for use. |
| Documentation | Material specification and applicable conformity documents for the ordered reference and destination. |
Distributor & OEM Enquiries
Request a Product-Specific Quotation
Send a size-based enquiry for the 5.5 polyaxial short-tail pedicle screw so the required configuration, quantity and matching components can be reviewed together.
Define Your Size Mix
List screw diameter, shaft length and quantity for each size. Include confirmed product references where available.
Specify the Supply Scope
State whether you require screws only, matching locking components, rods or a compatible instrument set.
Include Market Requirements
Provide the destination country, documentation requirements and any OEM marking or private-label packaging requests for review.
Related Instrumentation
Instrument Set for the 5.5 Pedicle Screw System
Specify Implants and Instruments Together
A compatible pedicle screw instrument set should be selected against the implant interfaces and the system’s approved surgical technique.
When requesting the 5.5 polyaxial short-tail screw, include your instrument requirements so the driver, rod-handling and final tightening interfaces can be checked before order confirmation.
- Request the current instrument list and tray configuration.
- Confirm compatibility with the screw head and locking set screw.
- Specify a complete set or individual replacement instruments.
- Request the applicable cleaning, sterilization and maintenance instructions.
| Instrument Group | Compatibility to Confirm |
|---|---|
| Pedicle Preparation Instruments | Required probes, depth-measuring instruments and taps according to the approved technique. |
| Screw Insertion Instruments | Driver engagement with the selected polyaxial screw, insertion control and the required holding mechanism. |
| Rod-Handling Instruments | Rod holder, contouring and seating instruments appropriate to the specified system. |
| Locking Instruments | Set screw driver, counter-torque instrument and final tightening tool specified by the system. |
| Instrument Tray | Set contents, identification layout and applicable reprocessing instructions. |
This checklist identifies configuration requirements, not a confirmed packing list. Request the itemized instrument list, quantities and compatible implant references with your quotation.
Product Questions
FAQ About the 5.5 Polyaxial Short-Tail Pedicle Screw
What does polyaxial mean for this pedicle screw?
Polyaxial means the screw head can angulate in multiple directions relative to the shaft before final locking. This differs from a monoaxial fixed-head design. Confirm the permitted angulation and locking sequence in the applicable system instructions.
Does short tail mean a shorter screw shaft?
No. Short tail describes the upper head configuration. The threaded shaft length is a separate specification and must be confirmed for the selected product reference.
Does the 5.5 series designation mean a 5.5 mm screw diameter?
No. The system designation and screw shaft diameter are separate parameters. Specify the actual screw diameter and length, and confirm the approved rod specification for the selected component.
Is every screw length available in every diameter?
Do not assume that every diameter is offered in every length. The table is an enquiry checklist; request the confirmed polyaxial short-tail catalogue, product references and availability from Davinmed.
Can different locking set screws be used with this product?
Use the locking set screw specified for the selected head configuration. Different locking designs should not be treated as interchangeable without documented compatibility.
Which instrument set should be ordered with this screw?
Request an instrument set confirmed for the ordered 5.5 polyaxial short-tail configuration. The screw driver, locking driver, rod-handling tools and final tightening instruments must match the selected system.
Is the matching instrument set included in the screw quotation?
Specify whether the enquiry is for implants only or implants with instrumentation. Confirm the instrument set reference, itemized contents and pricing scope in the quotation.
Is this screw suitable for a percutaneous MIS system?
A polyaxial head or short-tail configuration alone does not establish suitability for percutaneous use. If MIS or guidewire-based insertion is required, request a specifically documented implant and instrument system.
How can buyers confirm material and sterile supply status?
Request the material specification, packaging label and applicable instructions for the ordered reference. Confirm whether the implant is supplied sterile or non-sterile before purchase.
What information is required for a distributor or OEM quotation?
Provide the product configuration, diameter, length, quantity per size, destination country and required matching components. Include any marking, packaging or documentation requirements for technical review.
Discuss Your Screw & Instrument Requirements
Request a quotation for the 5.5 polyaxial short-tail pedicle screw and its matching instrumentation.
Please include: screw sizes, quantity per size, locking component requirements, instrument set requirements and destination country.
Submit your specification list through the product enquiry form on this page.
Last updated: September 18, 2026
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