Intraoperative Fracture Reduction via Contralateral Bone Mirroring
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Solution Overview
Problem
Conventional osteosyntheses for bone fractures require preoperative imaging and planning, which consume valuable time, expose patients and medical staff to radiation, and may not account for anatomical changes between imaging and the actual reduction procedure.
Innovation Solution
The method involves intraoperative imaging of the fractured bone and a contralateral bone to generate computer models, which are then registered and compared to a desired orientation to determine malalignment parameters, allowing for real-time adjustment of the fracture reduction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If preoperative imaging is performed for fracture planning, then diagnostic accuracy is improved, but radiation exposure increases and time consumption increases
Solution Approach 1:
The system performs preliminary 3D modeling and virtual fracture reduction planning using pre-acquired bone geometry data, allowing surgeons to plan the procedure in advance without requiring additional preoperative radiographic imaging. This preliminary action enables accurate diagnostic visualization and treatment planning while avoiding the harmful radiation effects of repeated X-ray exposure.
2Measurement precision
If preoperative imaging is performed for fracture planning, then diagnostic accuracy is improved, but time consumption increases
Solution Approach 1:
The system creates 3D bone models and performs virtual fracture reduction planning in advance using stored geometric data, enabling thorough diagnostic analysis and treatment planning before the actual surgical procedure. This preliminary computational work eliminates the need for time-consuming intraoperative imaging adjustments while maintaining high diagnostic accuracy.
3Reliability
If conventional osteosynthesis methods are used, then fracture reduction can be achieved, but anatomical changes between imaging and procedure are not accounted for
Solution Approach 1:
The system dynamically updates the virtual 3D bone model and fracture configuration based on real-time intraoperative fluoroscopic images. This dynamic adaptation allows the planning system to account for anatomical changes that occur between preoperative imaging and the actual surgical procedure, maintaining accurate fracture reduction guidance throughout the operation.
Data Source
AI summary
In one example a method of fracture reduction includes imaging, intraoperatively, a fractured bone of a patient to obtain a first representation of the fractured bone in a computing system. The fractured bone defines at least a first bone fragment, and a second bone fragment that is separated from the first bone fragment by a fracture. The method includes imaging, intraoperatively, a contralateral bone of the patient to obtain a second representation of the contralateral bone in the computing system. The method includes generating, intraoperatively in the computing system, a mirrored representation of the first representation or the second representation. The first representation is compared to a representation of a desired orientation of the fractured bone, where the representation of the desired orientation is the mirrored representation of the second representation. Alternatively, the mirrored representation is compared to the representation of the desired orientation of the fractured bone, where the representation of the desired orientation is the second representation.