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5.5mm
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Gessure
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21014
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1
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ISO \ CE \ FDA\ FSC\ MDSAP
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Titanium Alloy
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Laser marking, custom anodizing colors & packaging
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7–14 Days (OEM: 15–30 Days)
5.5 Titanium Alloy Monoaxial Short Segment Pedicle Screw is designed for posterior thoracolumbar fixation and fusion procedures. Made of Ti-6Al-4V medical titanium alloy, it provides excellent biocompatibility, strength, and corrosion resistance. The monoaxial fixed-head design ensures stable fixation, accurate rod connection, and reliable load transfer. Suitable for short-segment stabilization of spinal fractures, degenerative disorders, and fusion surgeries. Manufactured with precision CNC technology and strict quality control, it supports OEM/ODM customization.
✔ Monoaxial fixed-angle ✔ 5.5mm rod compatible ✔ Ø4.0–7.5mm · 25–55mm
5.5 Pedicle Screw Videos
5.5 Titanium Alloy Monoaxial Pedicle Screw Indications
The 5.5 Titanium Alloy Monoaxial Short Segment Pedicle Screw is commonly used for posterior spinal fixation and fusion procedures, including:
Thoracolumbar Fractures
- Stable and unstable thoracolumbar compression fractures
- Burst fractures requiring posterior stabilization
- Traumatic spinal instability
⚙️ Degenerative Spinal Disorders
- Lumbar degenerative disc disease
- Spinal instability caused by degeneration
- Segmental instability
Spinal Deformity Correction
- Mild to moderate spinal deformity correction
- Posterior stabilization procedures
Spinal Fusion Procedures
- Posterior lumbar fusion (PLF)
- Posterior thoracolumbar fixation
- Short-segment pedicle screw fixation
5.5 Monoaxial Pedicle Screw Main Advantages
Premium Titanium Alloy
Made from Ti-6Al-4V medical titanium alloy:
- Excellent biocompatibility
- High fatigue resistance
- Superior corrosion resistance
- MRI compatibility
- Long-term implantation reliability
Monoaxial Fixed-Angle
The monoaxial structure provides:
- Fixed screw head alignment
- Enhanced axial load transmission
- Improved construct rigidity
- Reduced risk of screw head movement during rod placement
Particularly suitable for cases requiring strong stabilization and controlled correction.
Short Segment Advantage
Compared with long-segment fixation:
- Preservation of more spinal motion segments
- Reduced surgical trauma
- Less implant burden
- Lower overall surgical complexity
Optimized Thread Design
- Strong cortical and cancellous bone purchase
- Improved pull-out resistance
- Smooth insertion performance
- Reduced insertion torque
Self-tapping flute design helps minimize surgical steps and improves operative efficiency.
Reliable Locking Mechanism
Compatible with 5.5mm spinal rods:
- Secure screw-rod connection
- Stable locking performance
- Excellent resistance against loosening
- Reliable postoperative fixation
⚙️ Precision Manufacturing & QC
- High-precision CNC machining
- Automated dimensional inspection
- Surface treatment process
- Material composition verification
- Mechanical performance testing
Each implant undergoes strict quality control to ensure consistency and reliability.
5.5 Monoaxial Pedicle Screw Size Specifications
| Product image | Specification | Model |
|---|---|---|
| 4.0×25 | 21014025 |
| 4.0×30 | 21014030 | |
| 4.0×35 | 21014035 | |
| 4.5×25 | 21014525 | |
| 4.5×30 | 21014530 | |
| 4.5×35 | 21014535 | |
| 4.5×40 | 21014540 | |
| 5.0×30 | 21015030 | |
| 5.0×35 | 21015035 | |
| 5.0×40 | 21015040 | |
| 5.0×45 | 21015045 | |
| 5.5×35 | 21015535 | |
| 5.5×40 | 21015540 | |
| 5.5×45 | 21015545 | |
| 5.5×50 | 21015550 | |
| 6.0×35 | 21016035 | |
| 6.0×40 | 21016040 | |
| 6.0×45 | 21016045 | |
| 6.0×50 | 21016050 | |
| 6.0×55 | 21016055 | |
| 6.5×30 | 21016530 | |
| 6.5×35 | 21016535 | |
| 6.5×40 | 21016540 | |
| 6.5×45 | 21016545 | |
| 6.5×50 | 21016550 | |
| 6.5×55 | 21016555 | |
| 7.0×30 | 21017030 | |
| 7.0×35 | 21017035 | |
| 7.0×40 | 21017040 | |
| 7.0×45 | 21017045 | |
| 7.0×50 | 21017050 | |
| 7.5×35 | 21017535 | |
| 7.5×40 | 21017540 | |
| 7.5×45 | 21017545 | |
| 7.5×50 | 21017550 |
Recommended Supporting Instruments
To achieve accurate and dfficient implantation ,the following surgical are recommended

No. | Name | Specification | Quantity | Code |
1 | Open cone | Open cone | 1 | 90010001 |
2 | Circuit breaker | Straight circuit breaker Φ3.2 | 1 | 90010003 |
3 | Circuit breaker | The circuit breaker is 3.5 | 1 | 90010004 |
4 | Circuit breaker | Straight circuit breaker Φ2.5 | 1 | 90010002 |
5 | Bone probe (hard) | Bone probe (hard) | 1 | 90010201 |
6 | Double-ended probe | 300 | 1 | 90010005 |
7 | tap | Thread Tap 4.5 | 1 | 90010006 |
8 | tap | Thread Tap 5.5 | 1 | 90010007 |
9 | tap | Tap 6.5 | 1 | 90010008 |
10 | tap | Thread Tap 7.5 | 1 | 90010009 |
11 | Quick-load handle | Vertical ratchet handle | 2 | 90010105 |
12 | nailer | Universal nail driver M9 | 1 | 90010060 |
13 | nailer | Single spindle nail driver M9 | 1 | 90010061 |
14 | nailer | Reset gimbal screwdriver M9 | 1 | 90010101 |
15 | nailer | Reset uniaxial pin driver M9 | 1 | 90010102 |
16 | Quick-load handle | T quick change handle | 1 | 90010062 |
17 | Orthopedic clamp | Plum plug driver | 1 | 90010063 |
18 | Orthopedic wrench | Extended plum plug driver | 1 | 90010103 |
19 | Bone measuring apparatus | Die Rod (25mm) | 1 | 90010223 |
20 | Bar bending pliers | Bar bending pliers | 1 | 90010213 |
21 | Rod holding forceps | Rod holding Pliers 5.5 | 1 | 90010069 |
22 | Reset forceps | Rocking Pliers 5.5 | 1 | 90010072 |
23 | Reset forceps | Long tail Nail Swinging Pliers 5.5 | 1 | 90010073 |
24 | Counter wrench | Counter Sleeve 5.5 | 1 | 90010108 |
25 | Orthopedic wrench | Final lock driver SW6.35 | 1 | 90010075 |
26 | Orthopedic strip | Domino plum starter | 1 | 90010076 |
27 | Curved spreader pliers | Curved spreader pliers | 1 | 90010036 |
28 | Curved pressure forceps | Curved pressure forceps | 1 | 90010037 |
29 | Orthopedic wrench | Spinner wrench SW4,.0 | 1 | 90010217 |
30 | Pedicle screw tail cutter | Long arm nail breaker | 1 | 90010107 |
31 | Orthopedic wrench | Plum screwdriver 5.5 | 2 | 90010086 |
32 | Torque handle | 12.5 N · m | 1 | 90010090 |
33 | Orthopedic wrench | Lengthened plum screwdriver | 1 | 90010104 |
34 | Connect the driver horizontally | SW3.5 | 1 | 90010025 |
35 | Diameter ruler | Measuring ruler | 1 | 90010093 |
36 | Medical ruler | Transverse measuring stick | 1 | 90010094 |
37 | Pedicle locator | Pedicle locator | 1 | 90010095 |
38 | Guide needle | columnar | 4 | 90010096 |
39 | Guide needle | spherical | 4 | 90010097 |
40 | Orthopedic clamp | Transverse joint forceps | 1 | 90010041 |
41 | Implant rod press into rod | Rod Press 5.5 | 1 | 90010070 |
42 | Rod holding forceps | Strong rod holding pliers | 2 | 90010079 |
43 | Vertebral reset device | Sagittal plane in situ rod Bender (left) 5.5 | 1 | 90010081 |
44 | Vertebral reset device | Sagittal plane in situ rod bender (right) 5.5 | 1 | 90010082 |
45 | Bone measuring apparatus | Die rod 50cm | 1 | 90010067 |
46 | Reset forceps | Frog reduction Forceps 5.5 | 1 | 90010071 |
47 | sleeve | Reset sleeve B 80 | 1 | 90010084 |
48 | Spinal implant pusher | Side bar loader 5.5 | 1 | 90010087 |
49 | Spinal implant pusher | Side upper rod handle 5.5 | 1 | 90010088 |
50 | Spinal implant pusher | Step press Bar T-handle SW14 | 1 | 90010089 |
51 | Instrument box | 1 | 90010098B |
5.5 Monoaxial Short Segment Pedicle Screw RFQ
What is a 5.5 Monoaxial Short Segment Pedicle Screw?
The 5.5 Monoaxial Short Segment Pedicle Screw is a specialized spinal fixation implant designed for posterior thoracolumbar stabilization and short-segment spinal fusion procedures.
It features a fixed-angle monoaxial screw head design, providing enhanced rigidity, improved load transfer, and reliable screw-rod fixation during spinal reconstruction.
Manufactured from premium Ti-6Al-4V medical titanium alloy, this pedicle screw offers excellent biocompatibility, high fatigue strength, corrosion resistance, and long-term implantation reliability.
The system is commonly used for thoracolumbar fractures, traumatic spinal instability, and selected posterior spinal fixation procedures requiring strong and stable fixation.
What are the main applications of the 5.5 Monoaxial Short Segment Pedicle Screw?
The 5.5 Monoaxial Short Segment Pedicle Screw System is designed for various posterior spinal fixation applications where rigid stabilization and limited fusion segments are required.
It is widely applied in orthopedic and neurosurgical procedures involving thoracolumbar spine injuries and reconstruction.
Thoracolumbar Fracture Fixation
The pedicle screw is commonly used for stable and unstable thoracolumbar compression fractures, burst fractures, and traumatic spinal instability.
Its rigid screw structure helps maintain vertebral alignment and provides strong mechanical support during the healing process.
Short Segment Spinal Stabilization
The short-segment fixation design allows surgeons to stabilize the injured spinal level while preserving more motion segments compared with long-segment fixation.
It provides an effective solution for selected spinal trauma cases requiring reliable posterior stabilization.
Posterior Spinal Fusion Procedures
The 5.5 monoaxial pedicle screw can be integrated into posterior spinal fusion systems for thoracolumbar reconstruction and stabilization procedures.
It is compatible with 5.5mm spinal rods to create a stable screw-rod construct.
What materials are used for the 5.5 Monoaxial Short Segment Pedicle Screw?
The 5.5 Titanium Alloy Monoaxial Short Segment Pedicle Screw is manufactured from medical-grade Ti-6Al-4V titanium alloy.
Titanium alloy is widely used in orthopedic implants due to its excellent biological compatibility, high strength-to-weight ratio, and corrosion resistance.
The material provides reliable mechanical performance and supports long-term implantation safety in spinal fixation applications.
What are the advantages of the 5.5 Monoaxial Short Segment Pedicle Screw?
The 5.5 spinal pedicle screw system provides multiple advantages for surgeons, hospitals, and orthopedic implant distributors.
Fixed Monoaxial Screw Head Design
The monoaxial structure keeps the screw head aligned with the screw shaft, creating a rigid fixation point.
This design improves axial load transmission and enhances the overall stability of the spinal fixation construct.
Strong Pull-Out Resistance
The optimized thread profile provides excellent bone purchase and improved pull-out resistance.
The self-tapping thread design facilitates efficient insertion and helps reduce surgical preparation steps.
Reliable Screw-Rod Connection
Designed for use with a 5.5mm spinal rod system, the screw provides secure locking performance and stable connection between implants.
The strong construct helps maintain postoperative spinal alignment and fixation stability.
Short Segment Fixation Benefits
The short-segment pedicle screw design minimizes the number of fixed spinal levels while maintaining adequate stabilization.
This approach may help preserve more natural spinal mobility and reduce unnecessary implant coverage.
What is the difference between a monoaxial and polyaxial pedicle screw?
A monoaxial pedicle screw features a fixed screw head angle, providing higher rigidity and stronger mechanical stability.
It is suitable for cases requiring a strong and controlled fixation structure, especially in trauma and short-segment spinal stabilization.
A polyaxial pedicle screw allows multi-directional movement between the screw head and shaft, offering greater flexibility during rod placement.
The choice between monoaxial and polyaxial screws depends on surgical technique, anatomical conditions, and fixation requirements.
What sizes are available for the 5.5 Monoaxial Short Segment Pedicle Screw?
The 5.5 Titanium Monoaxial Short Segment Pedicle Screw is available in multiple diameters and lengths to meet different anatomical requirements.
The standard configuration is compatible with a 5.5mm spinal rod system.
Standard Size Options
Screw Diameter:
4.5mm / 5.0mm / 5.5mm / 6.0mm / 6.5mm / 7.0mm
Screw Length:
25mm – 60mm
Rod Compatibility:
5.5mm spinal rod system
What surgical instruments are recommended for the 5.5 Monoaxial Short Segment Pedicle Screw?
The complete spinal fixation procedure requires dedicated surgical instruments to ensure accurate screw placement and efficient operation.
Recommended Instruments Include:
Pedicle Awl for creating the initial entry point
Pedicle Probe for preparing the screw pathway
Ball Tip Probe for checking pedicle wall integrity
Pedicle Screwdriver for controlled screw insertion
Rod Holder for rod positioning
Rod Bender for anatomical rod contouring
Torque Limiting Handle for accurate final tightening
How does the 5.5 Monoaxial Short Segment Pedicle Screw ensure fixation stability?
The fixation stability of the 5.5 Monoaxial Pedicle Screw System is achieved through optimized screw geometry, rigid monoaxial design, and secure locking technology.
The combination of strong titanium alloy material, precision machining, and reliable screw-rod connection provides consistent mechanical performance during spinal fusion and stabilization procedures.
How is the quality of the 5.5 Titanium Alloy Monoaxial Short Segment Pedicle Screw controlled?
Quality control is performed throughout the entire manufacturing process, from raw material selection to final product inspection.
The production process includes titanium alloy verification, CNC precision machining, dimensional inspection, thread accuracy testing, surface quality evaluation, and mechanical performance testing.
Manufactured under an ISO 13485 quality management system, each implant meets strict orthopedic device manufacturing requirements.
Can the 5.5 Monoaxial Short Segment Pedicle Screw be customized?
Yes, OEM and ODM customization services are available for global orthopedic companies, distributors, and medical device partners.
Customization options include screw diameter, screw length, thread design, screw head configuration, surface treatment, packaging, and instrument solutions.
Our professional manufacturing capability supports customized spinal fixation solutions for different markets and clinical requirements.
Why choose our 5.5 Monoaxial Short Segment Pedicle Screw?
Our 5.5 Titanium Alloy Monoaxial Short Segment Pedicle Screw combines advanced manufacturing technology, high-quality implant materials, and strict quality management to provide dependable spinal fixation performance.
With precision production capabilities, comprehensive quality control, and OEM/ODM support, we provide reliable spinal implant solutions for orthopedic distributors, hospitals, and medical device companies worldwide.

