Robotic Bone Preparation for Precise Hip 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 in accurately placing implant augments and extended surgical times, with existing robotically-assisted surgical devices lacking the capability to facilitate implant augment placement.
Innovation Solution
A robotic surgical system is developed that includes a robotic device, tracking system, and computing system to assist in planning and executing the precise placement of implant augments, using a preoperative surgical plan and virtual objects to guide the robotic device in modifying the bone according to the planned bone modification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If surgeon expertise and experience are relied upon for implant augment placement, then surgical flexibility is maintained, but placement accuracy decreases and surgical time increases
Solution Approach 1:
The system performs preoperative planning to determine the optimal placement of implant augments before surgery. Virtual models are created and bone modifications are planned in advance, allowing the surgical team to prepare precise guidance paths and reduce intraoperative decision-making time, thereby improving placement accuracy while reducing surgical time.
Solution Approach 2:
The patent replaces reliance on surgeon manual expertise and experience with an automated robotic system that uses computer-generated virtual models and preplanned bone modifications. The robotic device executes precise bone modifications based on preoperative plans, substituting human judgment with algorithmic precision to achieve consistent accurate placement regardless of surgeon experience level.
2Adaptability or versatility
If existing robotically-assisted surgical devices are used, then surgical precision is improved, but the capability to facilitate implant augment placement is lacking
Solution Approach 1:
The robotic surgical system is designed with multi-functionality to perform both standard arthroplasty procedures and specialized implant augment placement. The system can adapt to different surgical scenarios by loading appropriate virtual models and surgical plans, making it versatile enough to handle complex bone modifications required for augment placement while maintaining precision through its robotic control architecture.
Solution Approach 2:
The system employs dynamic virtual models that can be adjusted and modified based on intraoperative findings. The virtual bone modification plans can be updated in real-time to account for actual anatomical variations discovered during surgery, allowing the robotic device to adapt its bone modification paths while maintaining precision through continuous feedback and control.
Data Source
AI summary
A method includes obtaining a surgical plan comprising a first planned position of an implant and a second planned position of an augment relative to a bone. The augment is planned to provide support between the bone and the implant. The method also includes preparing the bone to receive both the implant in the first planned position and the augment in the second planned position by controlling a robotic device based on the first planned position of the implant and the second planned position of the augment.