Standalone Digital Templating for Radiographic Image Scaling
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Solution Overview
Problem
Conventional templating methods in orthopedic surgery face challenges such as unreliable measurement due to varying magnification of pre-operative radiographs, high costs associated with acetate templates, and the need for extensive inventory of prosthetic sizes, which can lead to complications and inefficiencies in selecting the appropriate prosthesis size and shape.
Innovation Solution
A stand-alone digital templating system that captures and scales radiographic images independently, allowing for precise matching with digital templates of various prostheses, eliminating the need for internet connection or specific PACS integration, and supporting multiple image formats to facilitate efficient pre-operative planning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If conventional acetate templates with single magnification factor are used, then templating can be performed, but measurement precision deteriorates due to varying radiograph magnification by patient body size
Solution Approach 1:
The system dynamically adjusts the magnification factor of digital templates based on the specific radiograph being analyzed. Unlike static acetate templates with fixed magnification, the digital system can be scaled to match the actual magnification present in each patient's radiograph, thereby maintaining measurement precision across different patient body sizes.
Solution Approach 2:
The invention changes the magnification parameter of digital templates to match the radiograph. By adjusting this parameter dynamically, the system resolves the contradiction between having a standardized templating tool and achieving accurate measurements for patients of varying sizes.
2Ease of operation
If multiple sets of acetate templates are maintained for different operating rooms, then templating availability is improved, but device complexity and storage burden increase significantly
Solution Approach 1:
Instead of maintaining multiple physical copies of acetate templates across different locations, the system uses a single digital template library that can be accessed and copied electronically to multiple operating rooms. This eliminates the need for extensive physical inventory while ensuring availability.
Solution Approach 2:
The digital template system serves multiple operating rooms simultaneously through network access or local copies, making a single template set universally available to all locations. This multi-functionality eliminates the need for separate template inventories in each room.
3Adaptability or versatility
If extensive inventory of prosthetic sizes is maintained, then complete prosthesis selection capability is improved, but manufacturing cost and storage cost increase
Solution Approach 1:
The system uses digital copies of prosthesis templates rather than maintaining physical inventory of all prosthesis sizes. This allows complete selection capability without the need to store extensive physical quantities of prosthetic components.
4Adaptability or versatility
If digital templating software requires PACS integration or internet connection, then image access capability is improved, but device complexity and ease of operation worsen due to additional interface requirements
Solution Approach 1:
The system extracts the core templating functionality from the PACS and internet dependency, creating a standalone application that can import radiograph images independently. This removes the complexity of PACS integration interfaces while maintaining the ability to access and process images.
Solution Approach 2:
The templating software is self-sufficient and does not require external PACS systems or internet connections to function. It independently handles image import, template display, and measurement capabilities, eliminating the need for complex external integrations.
Data Source
AI summary
Provided are a computer-aided system (medical device), a computer-aided method, and a computer program product useful in digital templating for prosthetic arthroplasty, for example, total hip arthroplasty. The invention includes digital image capture and scaling features that can be used in conjunction with any digital radiographic image stored using picture archiving and communication system (PACS), regardless of PACS provider or PACS format. Patient radiographic images are captured, imported, and scaled, e.g., to actual size, to match the scale of a digital template of any prosthesis selected by the user. The computer program product is a stand-alone product, used independently of any software interface, including software accessed through connection to a network or the internet. The software, method, and system are suitable for use with a stand-alone computer and permit improved and cost-effective selection of prostheses for any particular clinical situation.