Monolithic Glenoid Baseplate for Stable Modular Bone Augments
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Solution Overview
Problem
Existing reverse shoulder glenoid implant baseplates are not adequately compatible with modular bone augments, and there is a need for improved integration of metallic bone augments.
Innovation Solution
The development of monolithic metallic glenoid implant baseplates with features such as posts, fins, and porous structures that accommodate and secure modular bone augments, providing orientational stability and facilitating bone ingrowth.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If existing reverse shoulder glenoid implant baseplates are used, then the baseplate structure is simple, but compatibility with modular bone augments is insufficient
Solution Approach 1:
The baseplate is divided into functional segments including a reception portion for bone augments, a post portion for glenoid insertion, and a articular component portion. This segmentation allows each portion to be optimized for its specific function while maintaining overall compatibility with modular bone augments without excessive complexity
Solution Approach 2:
The baseplate design incorporates multiple functional capabilities within a single structure: it provides reception and fixation for bone augments, serves as an insertion post for the glenoid, and supports the articular component. This multi-functionality improves adaptability without requiring separate components for each function
2Stability of the object's composition
If modular bone augments are positioned between the glenoid and baseplate, then bone augmentation is achieved, but orientational stability is insufficient
Solution Approach 1:
The reception portion of the baseplate features an asymmetric geometry with a top surface that is not parallel to the bottom surface, creating a wedged configuration. This asymmetry provides inherent orientational stability for the bone augment, ensuring it maintains the correct orientation while being fixed between the baseplate and glenoid
Solution Approach 2:
The baseplate incorporates localized features specifically designed for bone augment fixation, including the wedged reception portion with specific geometric characteristics. This local optimization of the reception area provides both orientational stability and secure fixation without requiring modifications to the entire baseplate structure
3Ease of manufacture
If a monolithic metallic baseplate structure is used, then manufacturing integrity is improved, but integration of metallic bone augments is insufficient
Solution Approach 1:
The monolithic baseplate is designed with distinct functional segments (reception portion, post portion, articular component portion) that are integrated into a single metallic structure. This segmentation allows for optimized integration of metallic bone augments while maintaining the manufacturing advantages of a monolithic construction
Solution Approach 2:
The baseplate design facilitates the integration of metallic bone augments with the monolithic metallic baseplate structure. The reception portion is specifically configured to receive and integrate with metallic bone augments, creating a composite metallic construction that combines the benefits of monolithic integrity with enhanced adaptability
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
Enhances the compatibility and stability of modular bone augments, ensuring proper orientation and integration with the glenoid, while promoting bone ingrowth and secure fixation.
Implementation Method 1
the post comprises an outer surface and a plurality of porous surface portions
Data Source
AI summary
Various embodiments of a novel glenoid implant baseplate are disclosed. Provided is a prosthesis for attachment to a glenoid that includes a baseplate body that is a monolithic metallic structure and incorporates a distal surface and a proximal surface, a post extending from the proximal surface, and features associated with the post that can provide orientation stability for a modular bone augment. Also disclosed is a prosthesis for attachment to a glenoid that includes a baseplate body that is a monolithic metallic structure that incorporates an integrally formed metallic bone augment.