Observational Learning During Simulation-Based Training in Arthroscopy: Is It Useful to Novices?

Area of Science:

• Medical Education
• Surgical Simulation
• Motor Learning

Background:

• Observing experts is a common surgical training method.
• However, observing experts may lead to suboptimal motor learning.
• Watching non-experts' errors may enhance performance in simple motor tasks.

Purpose of the Study:

• To investigate if observational learning transfers to arthroscopy skills acquisition.
• To compare the effects of observing expert versus non-expert surgical demonstrations on virtual reality (VR) arthroscopy performance.
• To evaluate the impact of error-observation on surgical skill development.

Main Methods:

• Ninety medical students and surgical residents were divided into three groups: observing an expert, a non-expert, or a control (no video).
• Participants learned basic skills on a VR arthroscopy simulator.
• Performance was assessed pre-test, post-test, and at 1-week retention, analyzing metrics like camera path length and time to completion.

Main Results:

• All participants showed improved performance from pretest to retention (p < 0.001).
• The non-expert-watching group significantly outperformed other groups in camera path length and time to completion (p < 0.05).
• Both expert and non-expert groups demonstrated improved camera path length compared to the control group (p < 0.05).

Conclusions:

• Observing non-experts, particularly their errors, may enhance surgical skill acquisition.
• This suggests error-observation can aid in the internalization of specific movements and skills.
• Peer-based practice, combining novice and expert observations, could be a valuable complementary training strategy for surgical motor skills.