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orthopractis.com

Immersive Navigation for Distal Interlocking of Intramedullary Nails Using Apple Vision Pro

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 Intro

Intramedullary nailing (IMN) is a standard treatment for diaphyseal fractures, but distal interlocking using traditional free-hand techniques is complex, time-consuming, and involves significant radiation exposure. To address these challenges, we developed an AR-based navigation system for Vision Pro, aiming to improve targeting accuracy, reduce radiation, and shorten procedure times.

Methodology

  • System Design: A reference cube with QR markers enables real-time registration and visualization, aligning the AR overlay with the IM nail. Surgeons wear the Vision Pro for immersive, in-situ visualization of the nail, trajectory, and screw placement path.

  • Phantom Model Evaluation: We conducted trials using a tibial bone phantom with a pre-installed IMN. The system provides hand-free navigation via hand gestures and voice commands for sterility. Targeting accuracy is guided by dynamic overlays showing the IM nail and projected drilling paths.

Results
Accuracy: The AR system achieved mean positional errors along the X, Y, and Z axes of 1.55 mm, 1.71 mm, and 2.84 mm, respectively, with an end-to-end positioning error of 1.61 mm.
Time Efficiency: The average distal interlocking time was 165 seconds, reducing time by 63.6% compared to the X-ray-guided free-hand method. The AR method achieved a 95% success rate, compared to 60% with the X-ray method.
User Feedback: Surgeons reported high ease of use and minimal hand-eye coordination issues, with no notable visual fatigue.

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The AR-based system eliminates radiation exposure, minimizes setup time, and improves hand-eye coordination through immersive navigation. The Vision Pro offers an intuitive, real-time visualization of surgical instruments and trajectories. Unlike EM systems, which can be disrupted by metallic interference, our system remains accurate without reliance on costly equipment, positioning it as an accessible alternative in clinical settings.

Conclusion

The Vision Pro AR navigation system provides a safe, efficient, and precise method for distal interlocking in IMNs. Its advantages include:

  • Radiation-free navigation

  • Enhanced depth perception and accuracy

  • Reduced procedural time

This system offers a viable alternative to conventional methods, with promising applications across orthopedic and trauma surgeries.

4o

Surgical Precision, Reimagined

Apple Vision Pro brings a new era of precision and safety to orthopedic surgeries with its immersive augmented reality (AR) capabilities. Our AR-based navigation solution transforms the challenging process of distal interlocking in intramedullary nailing, offering surgeons an intuitive, radiation-free tool for better accuracy, efficiency, and patient outcomes.

Key Benefits:

Radiation-Free Navigation: Eliminate harmful exposure during surgery, offering a safer experience for both patient and surgical staff.
Enhanced Precision and Depth Perception: With Apple Vision Pro's immersive visualization, surgeons achieve unprecedented control and accuracy over critical targeting and screw placement, crucial for successful distal interlocking.
Efficiency Gains: Cut procedure time by over 60% compared to traditional X-ray methods, achieving faster recovery times and less time in the OR.
Hand-Free Control: Leveraging voice commands and hand gestures, Vision Pro ensures sterility while freeing up the surgeon’s hands for uninterrupted precision.
Transforming Surgical Navigation with Apple Vision Pro

Harness the potential of augmented reality in surgical procedures with an optical see-through head-mounted display (OST-HMD) that allows real-time visualization of 3D models, target points, and trajectories directly in the operating field.

Why Apple Vision Pro?

With AR-based navigation through Vision Pro, the challenges of hand-eye coordination and radiation exposure are addressed head-on. This breakthrough technology integrates seamlessly with surgical protocols, allowing intuitive, hands-on guidance for:

In-Situ 3D Visualization: Overlay virtual surgical models precisely onto the real-world anatomy for unparalleled accuracy.
Dynamic Trajectory Navigation: Real-time adjustments keep the surgeon on target, reducing errors and improving outcomes.
User-Friendly Design: Designed with ease of use in mind, Vision Pro’s display provides clear feedback without disrupting the sterile field.
A Safer, Smarter Surgical Future

Experience the next generation of surgical navigation with Apple Vision Pro—bringing augmented reality, reduced operation times, and greater accuracy to orthopedic and trauma surgery. Elevate your practice with this advanced, radiation-free solution and redefine surgical success.

Apple Vision Pro—Transforming Orthopedic Surgery One Procedure at a Time.

Disclaimer.
   Regarding its plausibility app offers no diagnosis or treatment. App provide an early indication that further evaluation may be warranted by Speciality Doctor.  Explicitly is announced that the apps are not for diagnosis. Clinical judgment and experience are required to properly use the software. App alone do not replace an M.D. or specialist. All information received from the App output must be reviewed before any attempted treatment. The software is not for primary image interpretation. Any influence to the operators in making decisions remains user own responsibility and experience. App does not dispense medical advice. Patient should seek a doctor’s advice in addition using the app and /or before making any medical decisions for themself. Never substitute or replace doctor's advice or change treatment modalities based on any measured outcome. App indicated for assisting healthcare professionals for scientific and research reason. Clinical judgment and experience are required to properly use the app and further research and validation is pending in coming future.The app is not a substitute for professional medical advice.Any medical information provided by the app should be used with caution and not relied upon exclusively for medical decision-making.

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