The Lateral Mass Cervical Screw (4.0 mm) is a titanium spinal fixation implant designed for use within compatible cervical lateral mass fixation systems according to the manufacturer’s approved indications and surgical technique.
The implant features a threaded shaft intended to provide mechanical engagement with cervical bone and a proximal screw head / connection interface designed to integrate with compatible cervical fixation components such as rods, connectors, plates, or other system-specific elements.
According to the supplied catalog information, the implant is manufactured from:
Material: Titanium
The product family is listed under:
Cat. No.: AMS 501.040.000
The nominal screw diameter is:
Ø4.0 mm
The product is available in 16 lengths ranging from 8 mm to 38 mm, in regular 2 mm increments. This broad range provides multiple options for implant selection according to cervical anatomy, lateral mass dimensions, required fixation depth, screw trajectory, construct configuration, and intraoperative assessment.
Each screw configuration carries a dedicated Cat. No. and GTIN No., supporting accurate implant identification, product traceability, surgical set preparation, procurement, inventory management, and stock control.
Product Explanation
The Lateral Mass Cervical Screw (4.0 mm) is a spinal fixation screw intended to function as part of a compatible cervical stabilization construct involving the lateral mass region.
A simplified fixation concept can be represented as:
Cervical Lateral Mass → 4.0 mm Fixation Screw → Compatible Cervical Fixation Component → Cervical Stabilization Construct
The threaded shaft provides mechanical bone engagement, while the proximal screw head forms the connection interface with the compatible spinal fixation system.
Product Components and Design
- Titanium Screw Body
The primary implant structure is manufactured from Titanium, according to the supplied catalog.
- 4.0 MM Nominal Diameter
The product is specifically identified as:
Lateral Mass Cervical Screw (4.0 mm)
indicating a nominal 4.0 mm screw configuration.
- Threaded Bone-Engagement Shaft
The screw incorporates a threaded shaft designed for mechanical engagement within cervical bone.
The supplied product data does not specify:
- Thread pitch
- Core diameter
- Thread depth
- Thread profile
- Thread tolerance
- Self-tapping characteristics
- Proximal Screw Head / Connection Interface
The proximal portion incorporates an enlarged head designed to interface with compatible cervical fixation components.
The exact head mobility, locking mechanism, drive interface, and rod / connector compatibility are not specified in the supplied table.
- Distal Tip
The distal section forms part of the threaded bone-engagement geometry.
The catalog does not define whether the screw tip is self-drilling, self-tapping, blunt, or another specific configuration.
- Length-Specific Configurations
Available lengths are:
8 / 10 / 12 / 14 / 16 / 18 / 20 / 22 / 24 / 26 / 28 / 30 / 32 / 34 / 36 / 38 mm
Intended Use
The Lateral Mass Cervical Screw (4.0 mm) is intended for use within compatible cervical spine fixation systems, according to the manufacturer’s approved indications and Instructions for Use.
Potential applications, where included within the approved indications, may include:
- Cervical lateral mass fixation.
- Posterior cervical stabilization constructs.
- Cervical screw-and-rod fixation.
- Multi-level cervical stabilization.
- Cervical spinal reconstruction procedures.
- Internal fixation of appropriate cervical vertebral segments.
Selection of the appropriate screw configuration depends on:
- Cervical anatomy.
- Lateral mass dimensions.
- Bone quality.
- Fixation site.
- Required fixation depth.
- Screw trajectory.
- Compatible rod / connector system.
- Construct geometry.
- Preoperative planning.
- Intraoperative assessment.
The implant should be selected and inserted by a qualified spine surgeon in accordance with the approved surgical technique and IFU.
Key Benefits
Titanium Material
The supplied catalog specifies:
Material: Titanium
4.0 MM Lateral Mass Screw Configuration
The implant is specifically identified as a 4.0 mm Lateral Mass Cervical Screw for compatible cervical fixation constructs.
Wide Length Range
Available lengths extend from:
8 mm to 38 mm
providing multiple implant selection options.
Sixteen Configurations
The product family includes:
16 individual screw lengths
within one cervical fixation range.
2 MM Length Progression
The configurations progress in regular:
2 mm increments
supporting systematic screw length selection.
Threaded Bone-Engagement Design
The implant incorporates a threaded shaft designed for mechanical engagement with cervical bone.
Compatible Fixation-System Integration
The proximal head is designed to function with compatible cervical fixation components according to the system configuration.
Product Traceability
Each screw length has an individual Cat. No. and GTIN No. to support:
- Implant identification
- Product traceability
- Surgical set preparation
- Procurement
- Inventory management
- Stock control
Technical Specifications
| Length | Cat. No. | GTIN No. |
| 8 mm | AMS 501.040.008T | 6221361045248 |
| 10 mm | AMS 501.040.010T | 6221361045255 |
| 12 mm | AMS 501.040.012T | 6221361045262 |
| 14 mm | AMS 501.040.014T | 6221361045279 |
| 16 mm | AMS 501.040.016T | 6221361045286 |
| 18 mm | AMS 501.040.018T | 6221361045293 |
| 20 mm | AMS 501.040.020T | 6221361045309 |
| 22 mm | AMS 501.040.022T | 6221361045316 |
| 24 mm | AMS 501.040.024T | 6221361045323 |
| 26 mm | AMS 501.040.026T | 6221361045330 |
| 28 mm | AMS 501.040.028T | 6221361045347 |
| 30 mm | AMS 501.040.030T | 6221361045354 |
| 32 mm | AMS 501.040.032T | 6221361045361 |
| 34 mm | AMS 501.040.034T | 6221361045378 |
| 36 mm | AMS 501.040.036T | 6221361045385 |
| 38 mm | AMS 501.040.038T | 6221361045392 |
Technical Overview
Product Name: Lateral Mass Cervical Screw (4.0 mm)
Material: Titanium
Product Type: Cervical Lateral Mass Fixation Screw
Product Category: Spinal Internal Fixation Implant
General Cat. No.: AMS 501.040.000
Nominal Diameter: 4.0 mm
Available Lengths: 8–38 mm
Length Increment: 2 mm
Number of Configurations: 16
Design: Threaded Cervical Fixation Screw with Proximal Connection Head
Anatomical Application: Cervical Spine / Lateral Mass
Fixation Concept: Cervical Screw-Based Fixation
Identification: Individual Cat. No. and GTIN No. for each length
Product Features
- Lateral Mass Cervical Screw Design.
- Manufactured from Titanium according to the catalog.
- Nominal diameter: 4.0 mm.
- Designed for compatible cervical spine fixation systems.
- Threaded shaft for bone engagement.
- Proximal fixation-system connection head.
- Available in 16 configurations.
- Length range from 8 to 38 mm.
- Regular 2 mm length increments.
- Provides multiple options for preoperative screw selection.
- Supports intraoperative selection according to cervical anatomy and required fixation depth.
- Suitable for integration with compatible cervical fixation constructs.
- Individual Cat. No. for every screw length.
- Individual GTIN No. for every configuration.
- Supports implant identification, traceability, procurement, and inventory management.
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