Contourable Glenoid Baseplate With Movable Wings
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Solution Overview
Problem
Current methods for preparing a glenoid in shoulder joint orthopedic implants face challenges such as selecting the right augment for bone defects, preparing the bone for the augment, and achieving proper screw fixation orientation, which can result in unnecessary removal of healthy bone and increased surgical complexity.
Innovation Solution
A contoured baseplate that can be adapted in vivo to match the glenoid surface, eliminating the need for augments and bone removal, and featuring moveable wings and depth stops to ensure proper fixation without the need for extensive bone preparation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional methods with augments are used to address glenoid bone defects, then proper support and fixation can be achieved, but healthy bone is unnecessarily removed and surgical complexity increases
Solution Approach 1:
The baseplate incorporates movable wings that can be deflected and positioned to conform to the glenoid surface contours. This dynamic adjustment capability allows the baseplate to adapt to varying bone surfaces without requiring pre-preparation or bone removal, resolving the contradiction between achieving reliable fixation and preserving healthy bone.
Solution Approach 2:
The baseplate design allows for changes in geometric parameters (wing position, contour shape) to match the specific glenoid surface topology. By enabling parameter adjustment rather than requiring fixed bone preparation, the system achieves reliable support while avoiding unnecessary bone removal.
2Reliability
If traditional methods with augments and bone preparation are used, then proper baseplate fixation can be achieved, but surgical time and complexity increase
Solution Approach 1:
The movable wings can be quickly deflected and positioned intraoperatively to match the glenoid surface without requiring time-consuming bone preparation or augment installation. This dynamic positioning capability reduces surgical time while maintaining fixation reliability.
Solution Approach 2:
The baseplate integrates the augmentation function directly into its structure through the movable wings, eliminating the need for separate augment components and their associated installation procedures. This merging of functions reduces both surgical complexity and time.
3Reliability
If traditional methods with multiple components are used to address glenoid defects, then proper support and orientation can be achieved, but device complexity increases
Solution Approach 1:
The baseplate combines multiple functions (support, orientation, adaptation to bone contours) into a single integrated component with movable wings. This eliminates the need for separate augments and preparation tools, reducing device complexity while maintaining reliability.
Solution Approach 2:
The baseplate design provides universal applicability to various glenoid surface conditions through its movable wings, which can be positioned to accommodate different bone contours. This multi-functionality eliminates the need for multiple specialized components for different defect types.
Data Source
AI summary
A baseplate configured to mount on a surface of a glenoid and couple with a glenosphere for a reverse shoulder arthroplasty. The baseplate optionally comprising: a main body having a plurality of thru holes therein; and one or more wings coupled to the main body and extending outward therefrom, wherein the one or more wings include, at least one thru hole therein, and wherein the one or more wings are configured to be moveable relative to the main body to interface with the surface of the glenoid.