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Self-stabilizing Cervical Fusion Cage

Material：Titanium alloy TC4

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Application:Degenerative Disc Disease, Deformity (defined as kyphosis, lordosis, or scoliosis), Pseudarthrosis, Failed Previous Fusions

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Description Application Specifications Delivery FAQ

Description

Zero-Profile self-stabilizing cervical fusion cage

The self-stabilizing cervical fusion cage is an intervertebral spacer made of radiolucent PEEK (polyether–ether ketone) with integrated pure-tantalum X-ray markers. It is inserted between two cervical vertebrae and secured with titanium-alloy screws, restoring disc height and normal cervical lordosis. The cage's unique design uses a distraction–compression stabilization mechanism (originally described by Bagby) to achieve immediate segmental stability: by distracting the disc space and then locking the implant, opposing forces are generated that resist rotation and shear, providing early fixation to aid fusion. In practice, the cage reconstructs the anterior spinal column after discectomy, bears axial loads in place of the removed disc, and maintains tension in the annulus and ligamentous structures. While it provides instant stability, ultimate fusion depends on bony ingrowth through and around the implant.

Features

Reduce the need for uncovertebral joint bite-off, provide a stable environment for intervertebral fusion, and reduce the risk of epidural venous plexus bleeding, dural tear, and nerve root injury caused by related operations

Screw insertion angle range is: head and tail angle 36~44°, medial and lateral angle -1.5°~11.5° Screw angle can change with stress changes after surgery to prevent potential stress shielding
Significantly improve axial stress, more in line with Wolff's law, and bring good long-term fusion effect Effectively avoid interference with the original internal fixation during revision of adjacent vertebral disease

Fast implantation and easy locking Lock after implanting 2 screws The screw stopper can be rotated 90° clockwise to effectively prevent the screw from falling out	T8/T10 screwdriver integrated design One screwdriver is used to complete nailing/locking, which reduces the possibility of switching/misusing screwdrivers during surgery and makes the operation easier

Diverse tool designs Universal prosthesis holder (standard) effectively prevents tools from blocking the field of vision Specialized prosthesis holder (optional) provides the most standard nail placement channel for fusion devices of different heights
Minimally invasive Smaller skin incision Precision operation	Personalized screw implantation plan Effortless operation, in line with the operating habits of most doctors Universal drill/universal screwdriver is more convenient to operate under small incision

Advantage

l Broad Sizing Options: The system offers multiple cage footprints and heights (various length × width × height combinations) to match patient anatomy. Surgeons can select the optimal size for each case.

l Streamlined Procedure: As a stand-alone, zero-profile device, no separate titanium plate is needed. Fewer screws are required (typically two) and there is no need to contour or apply a plating system, which can reduce operative time. Minimally invasive insertion via a small anterior approach lowers soft-tissue trauma and may decrease wound complications.

l Reduced Complications: The low-profile, flush fit within the disc space avoids anterior hardware protrusion. This can significantly reduce the risk of plate-related issues (implant loosening, screw back-out, plate breakage) and postoperative dysphagia often seen with traditional plate-and-cage constructs. Avoiding a long plate may also lessen adjacent-segment ossification.

l Enhanced Fusion Potential: By closely matching bone stiffness, the PEEK cage reduces stress-shielding and encourages load-sharing by the graft/bone. The hollow graft chamber allows packing ample autograft or allograft. Together with serrated endplates and immediate mechanical stability, this creates an optimal environment for solid arthrodesis.。

l Clear Imaging: Radiolucent PEEK and the tantalum marker pins allow unobstructed visualization of fusion progress on X-ray or CT. This helps clinicians monitor healing without interference from the implant.

Application

Indications

This self-stabilizing cervical fusion cage is indicated for use in anterior cervical discectomy and fusion (ACDF) procedures from C2 through C7. It is intended to support the vertebral bodies after disc removal and to stabilize the cervical spine in the following clinical situations.

l Degenerative Cervical Disc Disease: Symptomatic disc herniation or degeneration leading to radiculopathy or myelopathy.

l Disc Space Collapse or Spondylotic Stenosis: Loss of disc height or foraminal narrowing requiring restoration of disc space.

l Revision Surgery: Treatment of failed prior cervical fusion (nonunion) or recurrent disc herniation with instability.

l Postoperative Instability: Any condition after anterior discectomy where supplemental stabilization is needed.

The SelfStabilizing Cage provides immediate support, restores disc height, and facilitates the natural fusion process.

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