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Design and Development of a Universal Accessory for Instruments and Implants Navigation in Image-Guided Spine
Summary
A new Universal Accessory (UA) improves instrument integration in Image-Guided Spine Surgery (IGSS). This device enhances tracking accuracy and reliability for diverse surgical tools and implants.
Area of Science:
- Orthopedic Surgery
- Medical Device Engineering
- Surgical Navigation Technology
Background:
- Existing Image-Guided Spine Surgery (IGSS) systems face challenges integrating diverse instruments and implants.
- Current navigation adaptors often have closed-implant and line-of-sight limitations, hindering seamless workflow.
Purpose of the Study:
- To develop and evaluate a Universal Accessory (UA) for enhanced integration of non-navigated instruments and implants with IGSS.
- To overcome limitations of existing adaptors, improving usability and accuracy in image-guided spinal procedures.
Main Methods:
- Development of a UA utilizing a radially symmetrical collet chuck mechanism with SS 17-4 PH and Al 6061-T6 materials.
- Performance evaluation using an Optical Tracking System (OTS), Coordinate Measuring Machine (CMM), Finite Element Analysis (FEA), and a spine training model with surgeons.
Main Results:
- The UA demonstrated high accuracy with repeatability of 0.61±0.27mm and reproducibility of 0.58±0.29mm.
- Reliability was confirmed at 0.05±0.02mm, with a Factor of Safety of 5.7 from FEA.
- Surgeon feedback from a training model highlighted the UA's effectiveness, reliability, and consistent performance.
Conclusions:
- The developed Universal Accessory effectively enhances the integration of instruments and implants in Image-Guided Spine Surgery.
- The UA offers a reliable, accurate, and clinically viable solution for improving IGSS system compatibility and surgical workflow.
