Preoperative Planning System for Shoulder Joint Surgery
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Solution Overview
Problem
Current preoperative planning systems for shoulder joint surgeries face challenges in accurately determining the orientation and placement of prosthetic glenoid components, especially in cases with bone loss or deformity, due to limited accuracy and high costs of existing surgical navigation systems, and the need for customized prostheses which can be expensive and biomechanically problematic.
Innovation Solution
A preoperative planning system that creates a virtual three-dimensional model of the patient's native tissue using CT data, allowing for the simulation of prosthetic implant placement and orientation, and the generation of patient-specific templates and placement guides to assist in accurately positioning prosthetic components during surgery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If surgical navigation systems are used to determine orientation and placement of prosthetic glenoid components, then positioning accuracy is improved, but system cost and complexity increase
Solution Approach 1:
The patent creates a three-dimensional virtual model that is a digital copy of the patient's native tissue anatomy. This virtual model allows surgeons to plan and simulate prosthetic implant placement without requiring complex surgical navigation systems during the actual surgery, thereby reducing system complexity while maintaining positioning accuracy through preoperative planning.
2Manufacturing precision
If customized prostheses are designed for each patient to account for anatomical variations, then implant fit and surgical outcomes are improved, but manufacturing cost and time increase
Solution Approach 1:
The patent performs preoperative planning and simulation of prosthetic implant placement using a three-dimensional virtual model of the patient's anatomy. By determining the optimal implant orientation and placement before surgery, the system allows surgeons to use standard prosthetic components more effectively, reducing the need for expensive customized prostheses while maintaining good implant fit.
3Measurement precision
If extensive intraoperative imaging is performed to verify implant placement, then positioning accuracy is improved, but operative time increases
Solution Approach 1:
The patent performs comprehensive positioning planning and verification in the preoperative stage using three-dimensional virtual modeling and simulation. By determining the optimal implant orientation and placement before surgery, the system minimizes the need for extensive intraoperative imaging, thereby reducing operative time while maintaining positioning accuracy through the preestablished surgical plan.
Data Source
Figure 1A~1B
Figure 1C
Figure 2
AI summary
A method for assisting a user with surgical implementation of a preoperative plan includes generating a physical native tissue model of a native patient tissue. The physical native tissue model includes at least one primary patient tissue area including a surface of interest, at least one secondary patient tissue area including no surfaces of interest, and a base surface for engaging a supporting structure. The physical native tissue model, as generated, includes at least one information feature providing clinically useful information to the user. The information feature is substantially separated from the surface of interest. An apparatus for assisting a user with surgical implementation of a preoperative plan is also provided.