Robotic Hip Revision Surface Evaluation for Implant Augment Placement
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Solution Overview
Problem
Current surgical procedures for hip arthroplasty, especially those involving implant augments, rely heavily on surgeon expertise and experience, leading to difficulties and extended surgical times, and existing robotically-assisted surgical devices do not provide for the placement of implant augments.
Innovation Solution
A robotic surgical system with computer-assisted planning and robotically-assisted surgical steps is employed to facilitate bone preparation and placement of implant augments during hip arthroplasty procedures, utilizing a robotic device, tracking system, and computing system to guide and control surgical tools for precise implant placement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If robotically-assisted surgical devices are used for hip arthroplasty, then surgical precision and patient outcomes are improved, but the ability to place implant augments is limited
Solution Approach 1:
The robotic surgical system is enhanced with computer-assisted planning capabilities and virtual model comparison functions that enable it to perform multiple surgical tasks including both primary implant placement and augment placement. The system can adapt to different surgical scenarios by comparing pre-operative virtual models with intraoperative actual bone surfaces, providing universal applicability across various hip arthroplasty procedures.
Solution Approach 2:
The system performs computer-assisted surgical planning before the actual surgery, creating virtual models of the patient's anatomy and implant configurations. This preliminary virtual planning allows the surgical team to identify the need for augment placement in advance, and the system then guides the actual augment placement during surgery by comparing pre-planned virtual models with real-time intraoperative bone surface data.
2Reliability
If surgeon expertise and experience are relied upon for implant augment placement, then surgical judgment is applied, but surgical time is extended
Solution Approach 1:
The robotic system provides real-time feedback by continuously comparing the pre-operative virtual model with the actual bone surface detected during surgery. This feedback mechanism guides the surgeon through the augment placement process, confirming that each step aligns with the surgical plan, thereby maintaining high surgical judgment quality while reducing the time required through automated guidance and verification.
Solution Approach 2:
The system replaces reliance on surgeon memory and experience-based timing with an automated computer-assisted system that provides real-time guidance. The robotic device with tracking capabilities substitutes for the surgeon's cognitive processing, offering objective, data-driven guidance that maintains surgical quality while significantly reducing the time required for complex augment placement decisions.
3Ease of operation
If manual surgical techniques are used for bone preparation, then surgical flexibility is maintained, but measurement accuracy and bone surface evaluation are reduced
Solution Approach 1:
The robotic system acts as an intermediary between the surgeon's manual techniques and the bone surface. The tracking system and sensors capture precise three-dimensional data of the actual bone surface, serving as a mediator that translates physical surgical actions into accurate digital measurements. This allows the surgeon to maintain manual flexibility while the system provides objective, high-precision measurement and evaluation of bone surfaces for augment placement.
Data Source
AI summary
A method includes obtaining a surgical plan including a removal of a first physical implant from a bone and a replacement of the first physical implant with a second physical implant. The method also includes receiving a first virtual model including a first virtual implant model relative to a first virtual bone surface of a bone. The first virtual bone surface represents a first bone surface to which the first physical implant is coupled. The method also includes identifying a second bone surface resulting from removal of the first physical implant from the bone by tracking a position of a surgical tool relative to the bone. The method also includes detecting a discrepancy between the first bone surface and the second bone surface and displaying, on a graphical user interface, a visualization of the discrepancy.