Patient-Specific Hip Prosthesis Placement for Desired Activities
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Solution Overview
Problem
Existing hip arthroplasty methods do not adequately address the need for precise acetabular cup placement and implant orientation to accommodate various physical activities post-surgery, limiting patient mobility and satisfaction.
Innovation Solution
A method involving obtaining patient-specific image data, determining desired range of motion, creating a customized implant plan, and using visual or electrical guides to execute precise acetabular cup placement and orientation, incorporating feedback mechanisms for stability and impingement analysis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional hip arthroplasty methods are used, then the procedure is simple and quick, but the acetabular cup placement precision and implant orientation are insufficient
Solution Approach 1:
The system performs pre-operative planning and creates a customized implantation plan before surgery. Image data is obtained and processed to determine optimal cup placement and orientation based on patient-specific anatomy and desired range of motion, allowing the surgeon to have a detailed roadmap before entering the operating room
Solution Approach 2:
The system replaces traditional mechanical alignment tools and manual measurement methods with computer-based image processing and digital planning systems. The implantation plan is created through software that analyzes patient-specific anatomy from imaging data, substituting physical alignment instruments with digital guidance
2Adaptability or versatility
If traditional hip arthroplasty methods are used, then the surgical time is short, but the patient's range of motion for desired physical activities is limited
Solution Approach 1:
The system determines the desired range of motion based on the patient's specific physical activity requirements before surgery. The implantation plan is pre-calculated to optimize cup orientation and placement for achieving the patient's targeted activities, eliminating the need for intraoperative trial and error
Solution Approach 2:
The system uses patient-specific image data and anatomical characteristics to automatically generate the optimal implantation plan. The software self-adjusts the planning parameters based on the patient's unique anatomy and activity goals without requiring extensive manual intervention during surgery
3Measurement precision
If precise acetabular cup placement is achieved through traditional methods, then implant orientation may be improved, but feedback on actual position relative to desired location is lacking
Solution Approach 1:
The system incorporates feedback mechanisms that provide real-time information to the surgeon during implantation. The actual position of the acetabular cup is monitored and compared against the pre-planned desired location, allowing for immediate correction if deviations occur
Solution Approach 2:
The system replaces manual visual estimation and physical measurement with digital imaging and computer-based position verification. The feedback loop uses image processing to continuously monitor implant position and provide quantitative data on alignment accuracy
Data Source
AI summary
A method of implanting a hip joint prosthesis into a patient can include obtaining image data of hip joint anatomy of the patient. Physical activities that the patient desires to participate in subsequent to implanting the hip prosthesis can be determined. A size and an initial placement of the hip joint prosthesis based on the image data can be determined. A desired range of motion of the hip joint prosthesis based on the determined physical activities can be determined. A plan can be created comprising a desired implanted location of the hip joint prosthesis and based on the desired range of motion. The plan can be incorporated onto a guide. The plan can be executed with the guide thereby implanting the hip joint prosthesis into the patient at the desired implanted position.