Modular Bone Augment Stacking for Intramedullary Fusion
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Solution Overview
Problem
Current intramedullary implant systems face challenges in effectively cooperating with bone augments to ensure proper bone growth and fusion, particularly in cases where bone is diseased or damaged, as existing modular implant systems lack flexibility and optimal integration with the bone structure.
Innovation Solution
A modular implant system comprising multiple modular bone augment parts that can be stacked and engaged using fixation members to form a bone augment, with a combination of non-porous and porous sections for structural integrity and bone ingrowth, respectively, allowing for customizable height and integration with intramedullary implants.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If modular implant parts are used to replace diseased or damaged bone, then bone replacement and augmentation can be achieved, but the flexibility and optimal integration with bone structure is insufficient
Solution Approach 1:
The bone augment is divided into multiple modular parts that can be stacked and assembled together. Each modular part can be independently positioned and oriented, allowing the surgeon to customize the configuration to match the specific bone defect geometry and promote optimal bone growth patterns.
Solution Approach 2:
Different regions of the modular bone augment are designed with distinct properties - some portions are porous to encourage bone ingrowth while other portions are non-porous for structural support. The modular architecture allows these different qualities to be distributed throughout the implant according to local bone requirements.
2Reliability
If bone augments are used with intramedullary implants, then bone replacement can be achieved, but proper bone growth and fusion may not occur
Solution Approach 1:
The modular bone augment components are designed to nest within or around the intramedullary implant structure. The augment parts can be stacked concentrically or positioned in nested arrangements that utilize the space provided by the intramedullary device while maintaining structural integrity and promoting bone fusion.
3Adaptability or versatility
If modular implant parts are stacked and engaged with fixation members, then customizable height and integration is achieved, but structural integrity may be compromised
Solution Approach 1:
The modular parts are designed with pre-formed engagement features and fixation member receptacles that ensure proper alignment and secure connection before the actual fixation is applied. The stacking geometry is predetermined to maintain structural integrity while allowing height customization.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The modular system enables effective bone replacement and augmentation, promoting bone ingrowth and fusion by providing a customizable, structurally sound, and biocompatible solution that adapts to individual patient needs, enhancing surgical repair outcomes.
Implementation Method 1
a combination of non-porous and porous sections for structural integrity and bone ingrowth
Data Source
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AI summary
Various modular implants and modular implant systems are disclosed herein, as are methods of implanting the same. The modular implant systems can include modular implants that are stacked on each other to define a modular implant system, which in an example can be used to replace or augment a void in bone. The modular implants can interact with an intramedullary implant to, for instance, assist with a fusion procedure.