Bone Plate Selection Using 3D Landmark Fit Assessment
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Solution Overview
Problem
Existing bone plating systems face challenges in fitting complex patient anatomies, causing discomfort, improper fixation, and hindering healing due to standard bone plates that do not account for individual bone structures, particularly in cases like Charcot and midfoot deformities.
Innovation Solution
A patient-specific bone plating system with customizable bone plates and complementary cut guides, designed to match individual bone anatomy, ensure proper fixation, and facilitate precise bone cuts, using preoperative planning and software tools to optimize plate design and alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If a standard bone plate is used, then the procedure duration and difficulty are reduced, but the fit and alignment with patient-specific bone anatomy deteriorates
Solution Approach 1:
The system performs preoperative planning and bone model creation before surgery to determine the optimal standard bone plate configuration. By预先 analyzing patient-specific bone anatomy through imaging and creating digital bone models, the system identifies the best-fitting standard plate design and screw hole locations in advance, eliminating the need for intraoperative customization while ensuring optimal fit and alignment.
Solution Approach 2:
The system serves multiple functions: it analyzes patient-specific bone anatomy, evaluates multiple standard bone plate options, selects the optimal plate design, and guides surgical implementation. This multi-functional approach allows standard bone plates to be effectively applied to diverse patient anatomies without requiring custom-manufactured plates for each case.
2Ease of manufacture
If a standard bone plate is used, then manufacturing cost and complexity are reduced, but patient comfort and fixation quality deteriorate
Solution Approach 1:
The system performs preoperative planning to identify the optimal standard bone plate and screw hole locations based on patient-specific bone anatomy. By determining the best-fitting standard plate design before surgery, the system ensures high fixation quality without requiring complex custom manufacturing processes.
Solution Approach 2:
The system applies local quality analysis by identifying specific regions of interest on the patient's bone anatomy, such as areas with higher bone density or specific anatomical landmarks. This allows the selection of standard bone plate screw hole locations that optimize fixation quality in critical areas while maintaining the use of standard, easily manufactured plates.
3Device complexity
If a standard bone plate is used, then simplicity and cost-effectiveness are improved, but adaptability to complex anatomy deteriorates
Solution Approach 1:
The system performs comprehensive preoperative analysis of complex bone anatomy through imaging and digital modeling to identify the most suitable standard bone plate configuration. By evaluating patient-specific anatomical features beforehand, the system adapts standard plate selection to complex anatomies without increasing device complexity or requiring custom-manufactured plates.
Solution Approach 2:
The system adapts standard bone plate parameters such as screw hole locations, plate orientation, and fixation points based on patient-specific anatomical measurements and bone quality assessments. This allows standard plates to be effectively adapted to complex anatomies by optimizing their application parameters rather than changing the plate design itself.
Data Source
AI summary
Described herein are systems and methods in which a surgeon can use computer-implemented deformity assessment and correction tools to create 3D models of a bone. To ensure adequate healing, a surgeon may choose to use a prefabricated bone plate, a semi-customized bone plate, or a fully-customized bone plate to hold first and second bone portions in a corrected position. To select the appropriate prefabricated bone plate, the surgeon may identify three landmark locations on the first and second bone portions corresponding to desired fixation hole locations on the bone plate. The surgeon can then use a software application to evaluate multiple bone plate designs in a library and compare the average proximity of the landmark locations to fixation hole locations on each of the bone plate designs. Then, the surgeon can determine which bone plate design best fits the patient anatomy based on his comparison.