Surgical Planning System for Prosthetic Positioning Accuracy
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Solution Overview
Problem
During surgical procedures, such as joint replacements, the visualization of anatomical structures can be obstructed by surface tissues like adipose tissue and muscle, making it difficult to accurately position prosthetics and perform resections based solely on preoperative image data without direct visualization.
Innovation Solution
A system that uses preoperative three-dimensional image data from MRI or CT scans to create a personalized plan for prosthetic placement and resection, including the identification of anatomical landmarks, which guides the positioning and stabilization of instruments to ensure accurate alignment and orientation of prosthetic components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If preoperative image data is used to plan prosthetic placement, then manufacturing precision of prosthesis positioning is improved, but measurement precision of anatomical structures deteriorates due to obstruction by surface tissues
Solution Approach 1:
The system performs preliminary actions by acquiring preoperative image data (CT scans, MRI) before the surgical procedure to create a three-dimensional model of the patient's anatomy. This allows the surgeon to plan and simulate the entire surgical procedure in advance, including identifying anatomical landmarks and determining optimal prosthesis positioning, thereby improving manufacturing precision while overcoming the limitation of intraoperative visualization obstruction.
Solution Approach 2:
The system creates a digital copy (three-dimensional model) of the patient's anatomy from preoperative imaging data. This virtual replica allows the surgeon to visualize and measure anatomical structures without being obstructed by surface tissues during the actual surgery. The digital model serves as an accurate representation that can be manipulated and analyzed to determine precise prosthesis positioning.
2Measurement precision
If surface tissue is removed to visualize anatomical structures, then measurement precision is improved, but loss of substance (tissue removal) increases
Solution Approach 1:
Instead of physically removing surface tissue to visualize anatomical structures, the system creates a digital copy from preoperative imaging data. This virtual three-dimensional model allows complete visualization and measurement of underlying anatomical structures without any physical tissue removal, thereby avoiding the loss of substance while achieving the desired measurement precision.
Solution Approach 2:
The system uses preoperative image data as an intermediary medium to visualize anatomical structures. Rather than directly observing the anatomy through incisions (which requires tissue removal), the preoperative images serve as an intermediary that penetrates through surface tissues to provide clear visualization of underlying structures without causing any tissue loss.
3Manufacturing precision
If a personalized surgical plan is created based on patient-specific anatomy, then manufacturing precision is improved, but device complexity increases
Solution Approach 1:
The system uses a universal multi-functional approach where a single three-dimensional modeling platform handles multiple tasks: acquiring and processing preoperative images, creating digital anatomical models, identifying anatomical landmarks, simulating surgical procedures, and generating personalized surgical plans. This consolidated multi-functional system achieves patient-specific precision without proportionally increasing complexity, as one integrated platform performs all necessary functions.
Data Source
AI summary
A system and method for performing a procedure is disclosed. The procedure may include preparing one or more bones for a prosthetic implant. The method may include provide instructions to a user for using identified instruments to perform a procedure. Instructions and may be provided for settings of adjustable instruments.