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Related Experiment Video

Updated: Jan 30, 2026

Technical Approach for Infrared Tracking for Soft Tissue Navigation with a Holographic Head-Mounted Display and Preclinical Validation
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Technical Approach for Infrared Tracking for Soft Tissue Navigation with a Holographic Head-Mounted Display and Preclinical Validation

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Augmented Reality-Based Femur Registration With Head-Mounted Display and Infrared Tracking Device as Stand-Alone

Nicolas Himpe1,2, Quentin Neuville3,4, Taylor Frantz5,6

  • 1Department of Orthopedic Surgery, Universitair Ziekenhuis Leuven Katholieke Universiteit Leuven Leuven Belgium.

Health Science Reports
|January 29, 2026
PubMed
Summary

This study shows an augmented reality (AR) navigation system using HoloLens 2 achieves clinically acceptable accuracy for total hip arthroplasty (THA). The system demonstrates consistent performance, meeting accuracy requirements for surgical navigation.

Keywords:
augmented realityhead‐mounted devicesurgical navigationtotal hip arthroplasty

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Area of Science:

  • Medical Technology
  • Surgical Navigation
  • Augmented Reality in Orthopedics

Background:

  • Evaluating standalone augmented reality (AR) navigation systems for total hip arthroplasty (THA).
  • Integrating infrared (IR) tracking and 3D CT models for intraoperative guidance.
  • Assessing AR system accuracy for clinical surgical navigation.

Purpose of the Study:

  • To evaluate the accuracy of a HoloLens 2-based AR navigation system for THA.
  • To determine if the AR system meets clinically acceptable accuracy standards.
  • To analyze factors influencing system accuracy.

Main Methods:

  • Developed a dedicated AR application with inside-out tracking for pose estimation.
  • Assessed registration accuracy using femur replicas and predefined target points.
  • Calculated Target Registration Error (TRE) and analyzed its variations.

Main Results:

  • Achieved a mean TRE of 3.61 ± 2.18 mm.
  • Observed significant accuracy variations by anatomical region and axis (p < 0.019).
  • Demonstrated operator-independent performance, with no significant differences across approaches or user experience levels.

Conclusions:

  • The AR navigation system shows consistent and accurate registration performance.
  • The system's mean TRE (~3 mm) meets accuracy requirements for THA clinical application.
  • Further cadaveric validation is recommended to confirm surgical feasibility.