Bone Strength Simulation Using 3D Cancellous Bone Structural Analysis
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Solution Overview
Problem
Existing methods for assessing bone strength, such as DXA and QCT, rely on two-dimensional measurements and simple density values, which fail to accurately reflect the complex structural properties of bone, leading to incomplete and unreliable bone strength evaluations.
Innovation Solution
A bone strength simulation calculation method that involves obtaining three-dimensional data of cancellous bone, reconstructing a skeleton mechanical model, and performing feature analysis to extract skeleton strength data, including quantity and angle data of trabecular nodes, to calculate comprehensive bone strength values.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If two-dimensional measurement methods (DXA) are used to assess bone strength, then the measurement process is simple and quick, but the assessment accuracy is insufficient because it cannot reflect complex structural properties
Solution Approach 1:
The patent transitions from two-dimensional bone density measurement to three-dimensional structural analysis. By obtaining 3D data of cancellous bone and constructing skeleton mechanical models, the system captures the complex spatial architecture of trabecular bone, including node quantities, angle data, and structural connectivity, thereby significantly improving bone strength assessment accuracy while managing computational complexity through automated processing algorithms
2Measurement precision
If simple density values are used for bone assessment, then the calculation process is straightforward, but the evaluation is incomplete because it ignores structural features
Solution Approach 1:
The patent segments the cancellous bone structure into discrete trabecular elements and identifies specific structural features including node quantities, angle data between trabeculae, and connectivity patterns. This segmentation approach extracts meaningful structural parameters from complex 3D data, enabling comprehensive bone strength evaluation that goes beyond simple density measurements while using automated algorithms to manage computational complexity
Solution Approach 2:
The patent transforms the assessment from using single density parameters to using multiple structural parameters including node quantity, angle data, and skeleton model features. By changing the parameter set from simple density to complex structural descriptors, the system achieves more complete bone strength evaluation while using computational algorithms to handle the increased parameter complexity
3Measurement precision
If three-dimensional reconstruction and skeleton modeling are performed, then structural features are accurately captured, but the calculation time and computational resources increase
Solution Approach 1:
The patent performs preliminary actions by pre-processing the 3D bone data to construct skeleton mechanical models and extract structural features (node quantities, angle data) before the actual bone strength assessment. This preliminary structuring of the data enables more efficient subsequent calculations and reduces real-time computational burden while maintaining high structural feature accuracy
Solution Approach 2:
The patent extracts only the most critical structural features from the complete 3D bone data, specifically focusing on node quantities, angle data between trabeculae, and skeleton model characteristics. By extracting and analyzing only these key structural parameters rather than processing all raw 3D data, the system achieves accurate structural feature capture while reducing overall calculation time and computational resource requirements
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
This method provides a more accurate and comprehensive assessment of bone strength by accounting for the structural features of trabecular bone, enhancing the reliability and objectivity of bone strength evaluations.
Implementation Method 1
obtaining the three-dimensional data of the cancellous bone of the bone segment to be analyzed by using a Quantitative Computed Tomography, QCT measurement method
Data Source
AI summary
A bone strength simulation calculation method and device, and a storage medium. The bone strength simulation calculation method includes acquiring three-dimensional data of cancellous bone of a bone segment to be analyzed; obtaining a skeleton mechanical model according to the three-dimensional data; and performing feature analysis on the skeleton mechanical model to obtain skeleton strength data.


