This Type VII Uniplanar Polyaxial Pedicle Screw for Spinal Fixation is a comprehensive posterior spinal fixation solution composed of pedicle screws, titanium rods, cross-links, domino connectors, locking caps, lateral connectors, iliac screws, and hooks.
It is designed to restore the anatomical alignment and physiological curvature of the spine while supporting partial or full biomechanical loads in cases of spinal deformity or instability.
The system enables posterior implantation of pedicle screws into the thoracic and lumbar vertebrae, followed by realignment via distraction, compression, and reduction.
Titanium rods are contoured to match spinal curvature and secured using locking caps, forming a stable three-dimensional construct.
All components are made from high-strength, biocompatible TC4 titanium alloy.
The Type VII Uniplanar Polyaxial Pedicle Screw is designed for use as part of a posterior spinal fixation system. Its uniplanar head structure combines controlled single-plane angulation with stable rod-to-screw connection, helping surgeons position the connecting rod while maintaining directional control during spinal alignment and correction procedures.
Positioned between conventional monoaxial and fully polyaxial screw designs, the uniplanar configuration allows movement in a defined plane while restricting motion in the other direction. This design can support rod accommodation, controlled reduction, and construct stability in thoracic, lumbar, and sacral fixation procedures.
Strong Structural Foundation: Based on Danis' three-column theory, pedicle screws provide solid fixation across all spinal columns, offering superior biomechanical stability for treating fractures, deformities, spondylolisthesis, and spinal instability.
High-Performance Titanium Rods: Titanium alloy rods offer excellent rigidity to maintain sagittal and coronal alignment, minimal shape memory to reduce rebound post-bending, and superior biocompatibility.
Versatile Locking Caps: Available in standard, break-off, and reduction types. Break-off designs ensure consistent locking torque, reducing the risk of manual variability.
Comprehensive Auxiliary Components: Including cross-links for enhanced anti-torsion stability, lateral connectors, and bone hooks for flexible intraoperative configurations.
Screw Options for Surgical Flexibility:
Fixed Screws: One-piece screw and head structure for rigid fixation.
Polyaxial Screws: Ball-joint head design allows multi-angle placement, eases rod insertion, and improves intraoperative flexibility while maintaining biomechanical stability.
Custom Type VII Uniplanar Pedicle Screw Solutions
The Type VII Uniplanar Polyaxial Pedicle Screw provides controlled single-plane head movement, convenient rod accommodation, and flexible integration into posterior spinal fixation systems.
With customizable screw dimensions, thread profiles, tulip structures, rod interfaces, materials, surface treatments, and instrument compatibility, it is suitable for spinal implant manufacturers, orthopedic distributors, and OEM medical device projects.
Send us your required specifications, drawings, samples, rod dimensions, and estimated order quantity to develop a Type VII uniplanar polyaxial pedicle screw matched to your spinal fixation system.
Brand-new combination of hybrid materials and material modification - unique functional gradient interface coupling technology.
Miniaturized design and minimally invasive channel technology - surgical robot implantation under navigation and positioning.
Design of double-locking large deflection angle screws - making orthopedic rod placement more convenient.
Implant identification and tracking technology - realizing the Unique Device identification (UDl) of spinal implants.
Anatomical thread design with perfect distribution ratio of single and double threads that fits anatomical characteristics
Negative angle thread effectively prevents screw back-out.
Multiple options including fixation, universal, reduction, hollow, cortical bone, single plane and pedicle screws
