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An Augmented Reality-Based Interaction Scheme for Robotic Pedicle Screw Placement.

Viktor Vörös1,2, Ruixuan Li1, Ayoob Davoodi1

  • 1Robot-Assisted Surgery Group, Department of Mechanical Engineering, KU Leuven, Celestijnenlaan 300, 3000 Leuven, Belgium.

Journal of Imaging
|October 26, 2022
PubMed
Summary
This summary is machine-generated.

This study introduces an augmented reality (AR) system for robot-assisted surgery, enabling intuitive intraoperative adjustments to surgical plans. The AR-robot integration demonstrated technical feasibility for pedicle screw placement, improving surgical precision.

Keywords:
AR interactionaugmented realitypedicle screw placementrobotic control

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Area of Science:

  • Robotics
  • Augmented Reality
  • Surgical Technology

Background:

  • Robot-assisted surgery (RAS) is increasingly used in operations, but adapting preoperative plans to intraoperative changes remains challenging due to non-intuitive interfaces.
  • Augmented reality (AR) via head-mounted displays (HMDs) offers intuitive visualization by overlaying virtual information onto the real world, with potential for OR applications.

Purpose of the Study:

  • To propose and demonstrate the technical feasibility of an innovative AR-based robotic approach for intraoperative surgical plan adjustment.
  • To enable intuitive surgeon-robot interaction for fine-tuning surgical plans during procedures like pedicle screw placement.

Main Methods:

  • Developed an AR system integrating a robot and HoloLens 2, featuring a novel spatial calibration method without external tracking.
  • Implemented an intuitive AR-robot interaction for surgeons to fine-tune plans and immediately transfer updates back to the robot.

Main Results:

  • Achieved a mean calibration error of 3.61 mm.
  • Demonstrated an overall target pose error of 3.05 mm in translation and 1.12° in orientation.
  • Recorded an average execution time of 26.56 seconds for intraoperative target point definition.

Conclusions:

  • The proposed AR-based robotic approach offers an intuitive method for intraoperative surgical plan adjustments.
  • The system's technical feasibility was validated in simulated pedicle screw placement, showing promising accuracy and efficiency.
  • This work highlights the potential of AR-robot synergy to advance robotic technology in the operating room and other medical fields.