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Updated: May 11, 2025

Author Spotlight: Revolutionizing Remote Surgery with Augmented Reality and Robotics for Enhanced Precision and Accessibility
Published on: August 9, 2024
Learning curve of augmented reality surgical application for reverse shoulder arthroplasty
Martin Bischofreiter1,2, Nadine Gabauer3, Michael Stephan Gruber3
1Department of Orthopedic Surgery, Ordensklinikum Barmherzige Schwestern Linz, Vinzenzgruppe Center of Orthopedic Excellence, 4020 Linz, Teaching Hospital of the Paracelsus Medical University Salzburg, Salzburg, 5020 9, Austria. m.bischofreiter@utanet.at.
This study found that using the NextAR augmented reality system for reverse total shoulder arthroplasty significantly reduced surgery time and blood loss. A learning curve was identified, with improvements noted around the fifteenth surgery.
Area of Science:
- Orthopedic Surgery
- Surgical Technology
- Medical Imaging
Background:
- Accurate glenoid component placement is crucial in reverse total shoulder arthroplasty (RTSA) to minimize complications.
- While conventional instrumentation is standard, patient-specific guides and computer-assisted navigation are increasingly important.
- Augmented reality (AR) systems, like NextAR, offer enhanced precision for component positioning and inclination in RTSA.
Purpose of the Study:
- To determine the learning curve for a high-volume surgeon performing RTSA using the NextAR augmented reality system.
- To evaluate the impact of the NextAR system on surgical efficiency and patient outcomes.
Main Methods:
- Retrospective analysis of the first 20 RTSA cases performed by a single high-volume surgeon using the NextAR system.
- Key parameters analyzed included anesthesia time, surgical time, hospital stay, intraoperative blood loss, and complications.
Main Results:
- Significant reductions were observed in surgery time (p=0.001), intraoperative blood loss (p=0.005), and anesthesia time (p=0.08).
- A turning point for reduced blood loss was noted around the 15th surgery.
- Operation time significantly decreased by the 14th surgery, with combined improvements in blood loss and operation time observed within the first 15 surgeries.
Conclusions:
- The NextAR system demonstrated significant improvements in surgery time and blood loss during RTSA.
- The observed benefits may be influenced by surgeon experience and other factors, limiting generalizability.
- Further research involving multiple surgeons and diverse outcome parameters is recommended to fully assess AR applications in RTSA.

