Data from: Are multiple views superior to a single view when teaching hip surgery? a single-blinded randomized controlled trial of technical skill acquisition
Data files
Feb 12, 2019 version files 3.28 GB
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drybone_cam1.mp4
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drybone_cam2.mp4
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drybone_cam3.mp4
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drybone_cam4.mp4
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drybone_cam5.mp4
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drybone_cam6.mp4
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drybone_cam7.mp4
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README.txt
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surgery_cam1.mp4
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surgery_cam2.mp4
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surgery_cam3.mp4
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surgery_cam4.mp4
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surgery_cam5.mp4
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surgery_cam6.mp4
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surgery_cam7.mp4
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surgery_cam8.mp4
Abstract
Purpose: Surgical education videos currently all use a single point of view (POV) with the trainee locked onto a fixed viewpoint, which may not deliver sufficient information for complex procedures. We developed a novel multiple POV video system and evaluated its training outcome compared with traditional single POV.
Methods: We filmed a hip resurfacing procedure performed by an expert attending using 8 cameras in theatre. 30 medical students were randomly and equally allocated to learn the procedure using the multiple POV (experiment group [EG]) versus single POV system (control group [CG]).
Participants advanced a pin into the femoral head as demonstrated in the video. We measured the drilling trajectories and compared it with pre-operative plan to evaluate distance of the pin insertion and angular deviations. Two orthopedic attendings expertly evaluated the participants' performance using a modified global rating scale (GRS). There was a pre-video knowledge test that was repeated post-simulation alongside a Likert-scale questionnaire.
Results: The angular deviation of the pin in EG was significantly less by 29% compared to CG (p=0.037), with no significant difference in the entry point's distance between groups (p=0.204). The GRS scores for EG were higher than CG (p=0.046). There was a 32% higher overall knowledge test score (p<0.001) and 21% improved Likert-scale questionnaire score (p=0.002) after video-learning in EG than CG, albeit no significant difference in the knowledge test score before video-learning (p=0.721).
Conclusion: The novel multiple POV provided significant objective and subjective advantages over single POV for acquisition of technical skills in hip surgery.