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Validation of a novel hip arthroscopy simulator: establishing construct validity.

Christopher Cychosz1, Zain M Khazi1, Matthew Karam1

  • 1Department of Orthopedics and Rehabilitation, University of Iowa Hospitals and Clinics, 200 Hawkins Drive, Iowa City, IA 52242, USA.

Journal of Hip Preservation Surgery
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PubMed
Summary

This study validates the ArthroS hip simulator for training hip arthroscopy (HA). Simulator performance, measured by composite score and procedure time, strongly correlates with surgeon experience, confirming its utility in surgical education.

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Area of Science:

  • Orthopaedic Surgery
  • Medical Simulation
  • Surgical Education

Background:

  • Hip arthroscopy (HA) is a complex procedure with a steep learning curve.
  • Arthroscopic simulators offer a valuable tool for training in various joint procedures.
  • Validation of novel simulators is crucial for effective surgical skill acquisition.

Purpose of the Study:

  • To validate the construct validity of the novel VirtaMed ArthroS hip simulator.
  • To assess the correlation between surgeon experience and performance on the hip arthroscopy simulator.
  • To determine the simulator's effectiveness in reflecting real-world surgical proficiency.

Main Methods:

  • Twenty surgical trainees and one expert performed a simulated diagnostic hip arthroscopy on the ArthroS simulator.
  • Participants were categorized into novice, intermediate, and experienced groups based on prior arthroscopy cases.
  • Performance metrics including composite score, procedure time, and camera path length were recorded and analyzed.

Main Results:

  • The ArthroS hip simulator demonstrated good construct validity, with performance metrics significantly differing across experience levels.
  • Composite scores were higher (p=0.0019) and procedure times shorter (p<0.002) in more experienced groups.
  • Simulator performance strongly correlated with the year of training and the total number of arthroscopic cases performed.

Conclusions:

  • The VirtaMed ArthroS hip simulator is a valid tool for training and assessing hip arthroscopy skills.
  • Simulator performance accurately reflects the surgeon's experience level and proficiency.
  • This simulator can aid in developing and evaluating competency in hip arthroscopy procedures.