3D Bone Model Virtual Planning for Prosthetic Fit
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Solution Overview
Problem
Standard prosthetic glenoid components often fail to fit and function properly in scapulas with abnormal pathology, requiring surgeons to modify the patient's anatomy, which can lead to biomechanical issues and complications, as current customization methods are time-consuming, expensive, and may not accurately replicate normal anatomy.
Innovation Solution
A method involving three-dimensional modeling of the patient's scapula, comparison to reference anatomical models, identification of structural differences, and specification of desired changes to create a modified bone model that can accurately mate with a prosthetic shoulder joint component, allowing for precise surgical planning and adaptation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If standard prosthetic glenoid components are used in scapulas with abnormal pathology, then manufacturing cost and device complexity are reduced, but the fit and function of the prosthetic component deteriorates
Solution Approach 1:
The patent performs preliminary 3D modeling and virtual surgical planning before actual surgery. The system creates a 3D model of the patient's scapula, compares it to reference anatomical models, identifies structural differences, and specifies desired bone structural changes to produce a modified bone model. This preliminary digital planning allows the surgeon to anticipate and prepare for the exact modifications needed, ensuring standard prosthetics can be properly fitted without requiring extensive intraoperative customization.
Solution Approach 2:
The patent creates a 3D digital copy or model of the patient's actual scapula anatomy. This virtual replica allows for detailed analysis, comparison with reference models, and simulation of surgical modifications without touching the actual bone. The digital model serves as a test bed for planning the precise bone restructuring needed to accommodate standard prosthetic components.
2Manufacturing precision
If custom prosthetic components are designed for each patient with abnormal anatomy, then prosthetic component fit is improved, but time consumption and manufacturing cost increase
Solution Approach 1:
The system performs all necessary 3D modeling, comparison analysis, and surgical planning in advance before the actual surgery. By completing the digital twin creation, anatomical comparison, and modification planning beforehand, the system eliminates time-consuming intraoperative customization while ensuring precise fit. The preliminary digital work allows standard prosthetics to be selected and prepared in advance.
Solution Approach 2:
The 3D digital model serves as a virtual prototype that replaces the need for physical custom prosthetic design and manufacturing. Instead of creating custom prosthetics for each patient, the system uses the digital copy to plan modifications to the patient's anatomy that will accommodate standard prosthetic components, thereby avoiding custom manufacturing entirely.
3Adaptability or versatility
If extensive bone modification is performed to accommodate standard prosthetics, then prosthetic component availability is improved, but surgical complexity and potential complications increase
Solution Approach 1:
The system performs virtual surgical planning and modification simulation before actual surgery. By using the 3D digital model to test and refine the planned bone modifications, the system identifies the most efficient surgical approach and anticipates potential complications. This preliminary digital rehearsal allows the surgeon to proceed with confidence using standard prosthetics without requiring complex intraoperative decision-making.
Solution Approach 2:
The digital 3D model serves as a virtual test environment where different surgical approaches and modification strategies can be evaluated before actual surgery. This allows optimization of the surgical plan to achieve the necessary bone restructuring with minimal complexity and risk, while ensuring compatibility with standard prosthetic components.
Data Source
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AI summary
A method of preparing for a surgical procedure includes creating a three- dimensional bone model of a subject bone of a patient. At least a portion of the bone model is compared to at least one three-dimensional reference anatomic model. At least one structural difference between the bone model and the at least one reference anatomic model is identified. At least one desired subject bone structural change is specified to produce a modified bone model responsive to the step of identifying at least one structural difference between the bone model and the at least one reference anatomic model. An apparatus for preparing for a surgical procedure is also provided.