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Related Experiment Video

Updated: Feb 10, 2026

Augmented Reality Navigation-Guided Core Decompression for Osteonecrosis of Femoral Head
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Augmented Reality Based Navigation for Computer Assisted Hip Resurfacing: A Proof of Concept Study.

He Liu1, Edouard Auvinet2, Joshua Giles3,4

  • 1Mechatronics in Medicine Laboratory, Imperial College, London, UK. he.liu15@imperial.ac.uk.

Annals of Biomedical Engineering
|May 26, 2018
PubMed
Summary

This study introduces an augmented reality (AR) navigation system for hip resurfacing surgery, improving accuracy and workflow. The AR system provides precise intra-operative guidance, comparable to existing computer-assisted orthopedic surgery methods.

Keywords:
Computer assisted orthopedic surgeryDepth image registrationGuide hole drillingNatural workflowSurgical accuracy

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Area of Science:

  • Orthopedic Surgery
  • Medical Imaging
  • Computer-Assisted Surgery

Background:

  • Implantation accuracy is crucial for hip resurfacing outcomes and functional recovery.
  • Computer-assisted orthopedic surgery (CAOS) offers improved accuracy but faces adoption barriers due to cost and complexity.
  • Existing navigation systems can be intrusive and disrupt the natural surgical workflow.

Purpose of the Study:

  • To develop and evaluate an augmented reality (AR) based navigation system for hip resurfacing.
  • To provide seamless, immersive computer assistance for improved surgical workflow and accuracy.
  • To reduce the intrusiveness and complexity associated with current CAOS methods.

Main Methods:

  • A novel AR navigation system was developed for hip resurfacing procedures.
  • The operative femur was registered using depth information from a commercial depth camera.
  • Intra-operative surgical guidance was delivered via an AR headset, utilizing pre-operative plans and depth data.
  • Robotic assistance was coupled with depth data for automatic tracking and avoidance of surgical obstacles.

Main Results:

  • Experiments on femur phantoms demonstrated the system's accuracy in guide hole drilling.
  • Mean errors in position and orientation were approximately 2 mm and 2°, respectively.
  • The achieved accuracy is comparable to current commercial computer-assisted orthopedic systems.

Conclusions:

  • The proposed AR navigation system offers a viable, less intrusive alternative for hip resurfacing.
  • The system enhances surgical accuracy and workflow efficiency without requiring additional physical guides.
  • AR-based navigation shows promise for wider adoption in orthopedic surgery.