Spinal Alignment Lumbar Interbody Fusion Cage Lumbar Spinal Cage

A lumbar interbody fusion cage, also known as a lumbar cage or interbody cage, is a medical device used in lumbar spine surgery to promote fusion between adjacent vertebrae. It is commonly used to treat conditions such as degenerative disc disease, spondylolisthesis, spinal instability, and disc herniation in the lumbar region.

The lumbar interbody fusion cage is typically made of biocompatible materials such as titanium, polyetheretherketone (PEEK), or a combination of materials. It is designed to be inserted into the intervertebral space between two lumbar vertebrae, replacing the damaged or degenerated disc.

The lumbar cage serves several purposes:

1. Spinal Alignment and Height Restoration: The interbody cage helps restore the natural alignment and height of the lumbar spine. It helps maintain proper disc height and spinal curvature, reducing pressure on nerves and stabilizing the lumbar segment.

2. Stabilization: The cage acts as a spacer, maintaining separation and stability between adjacent vertebrae while promoting fusion. It restricts excessive motion between the vertebrae, facilitating the fusion process and reducing the risk of recurrent symptoms.

3. Fusion Promotion: The cage provides a structure that promotes bone growth and fusion. It allows for the ingrowth of bone and provides a scaffold for fusion to occur between the adjacent vertebrae. Some cages have porous or roughened surfaces to enhance bone integration.

Product Design

• Anatomical Design

Convex support surface fits the upper and lower endplates, more in line with the human anatomical structure and facilitate fusion

• Post-implantation Stabilization

Pyramidal teeth prevent migration and achieve primary stability of implantation.
The design of beveled edge on the teeth side prevents the stress concentration during the contact between the cage and the end plate, and prevents the end plate fracture after operation.

• Improve the Fusion Rate

Extra large bone grafting window increases the amount of bone graft, increases the contact surface with the upper and lower endplates, and improves the fusion rate
PEEK material, good biocompatibility, elastic modulus close to bone, no stress shielding, improves fusion rate.

• Convenient Operation

Optimized bullet structure for easy implantation
Chamfer design of tail edge prevents postoperative stimulation of dural sac.
Add an impacting device at the end of the inserter to avoid exerting force on the thread at the connection part, causing the connection to loosen or even damage the thread.
Chamfer design of tail connecting hole facilitates the secondary installing of inserter when adjusting during operation
Three tantalum marker pins are convenient to observe the cage position.

Product Features

• Comprehensive Consideration of Immediate Fixation and Long-term Stability

Pyramidal teeth, preventing migritation, excellent primary stability
Extra large bone graft window, improving fusion rate and good long-term stability

• Convenient Intraoperative Operation

The improved bullet-tip design matching the inserting instrument that can be quickly assembled make the operation process convenient and fast.
The tail connection is specially designed to facilitate placement and adjustment during operation.

• Robot Empowerment

Cooperate with the "intelligent woodpecker" robot to plan the specification and implantation path of the cage, and calibrate the implantation position in real time during the operation.

Indications

• For patients who need segmental fusion of lumbar and lumbosacral segments
• Patients with degenerative disc disease and spinal instability
• Patients with spondylolisthesis
• Patients undergoing revision surgery after simple discectomy
• Patients with pseudarthrosis or failed lumbar fusion

Contraindications

• Tumor patients with bone destruction
• Patients with severe osteoporosis
• Patients with severe unstable burst fracture or compression fracture
• Patients with acute infection
• Patients with extensive epidural scar formation