Porous Interbody Endcap for Bone Graft Containment
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Solution Overview
Problem
Current surgical treatments for spinal disorders, such as degenerative disc disease and osteoporosis, often fail to effectively maintain bone graft within the intervertebral disc space, leading to incomplete fusion and instability.
Innovation Solution
An interbody implant system with a mesh cap configuration that allows bone growth while preventing bone graft egress, featuring a snap-fit design and flexible mesh to contain graft material until implantation, ensuring stable integration with vertebral tissue.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the interbody implant uses a solid closure to prevent bone graft egress, then bone graft containment is improved, but bone growth through the implant is blocked
Solution Approach 1:
The endcap is designed with a porous structure that allows bone growth through the material while the thickness of the porous endcap resists and prevents egress of bone graft from the cavity. The porous configuration enables bone ingrowth while maintaining graft containment through the thickness of the endcap.
2Stability of the object's composition
If the interbody implant uses a mesh cap design, then bone growth is permitted, but bone graft egress may occur
Solution Approach 1:
The endcap features a uniform surface configuration with varying local properties - the thickness provides graft containment while the porous structure allows bone growth. Different regions of the endcap serve different functions: the overall thickness contains graft while localized porous pathways enable bone ingrowth.
3Reliability
If the endcap thickness is increased to prevent bone graft egress, then bone graft containment is improved, but bone growth capability is reduced
Solution Approach 1:
The endcap utilizes a porous structure where the thickness is sufficient to contain bone graft but the porous configuration within that thickness allows bone growth. The porous material enables graft containment through the thickness while providing pathways for bone ingrowth through the same thickness.
Data Source
AI summary
An interbody endeap comprises at least one member configured for connection with an interbody implant. The at least one member has a thickness that permits bone growth therethrough and a uniform surface configuration that resists and/or prevents egress of bone graft from a cavity of the interbody implant. Systems and methods are disclosed.