• Rahul Bhattacharyya, Bilal Al-Obaidi, Kapil Sugand, Rajarshi Bhattacharya, and Chinmay M Gupte.
• ST8 Orthopaedic Registrar, Honorary Clinical Research Fellow, Imperial College London. Electronic address: rahulbhattacharyya09@gmail.com.
• Injury. 2021 Nov 1; 52 (11): 3420-3426.

IntroductionWorking time regulations, senior led service delivery and increasing complexity of surgical technology has led to significant strains in surgical training. Additionally, the current COVID-19 pandemic has placed substantial limitations on surgical training worldwide. Contact free, remote, web-based, validated learning tools which are easily accessible and allows repeated, sustained practice are the need of the hour. Cognitive Task Analysis (CTA) have been used extensively to train pilots and military personnel and has shown excellent early results within orthopaedic training. We designed a femoral nailing CTA tool which showed objective benefits in the enhancement of cognitive knowledge in medical students. The aim of this study was to evaluate the effectiveness of this CTA tool to enhance practical skills in orthopaedic trainees in a real time interactive simulation setting (Distributed Interactive Simulation (DIS)).MethodsThis was a double blinded, randomized controlled trial. 14 junior orthopaedic residents who met the inclusion criteria were recruited in the study. They were randomized into two equal groups. The intervention group were given the CTA learning tool, the control group were given a standard operative technique manual used for antegrade femoral intramedullary nailing. The participants were assessed on a high-fidelity phantom femur model with actual femoral nailing instruments in a simulation mobile operating theatre where the candidate had a simulation patient, an acting anesthetist and a scrub nurse (DIS). They were assessed using the modified Objective Structured Assessment of Technical Skills (OSATS) rating scale which has been validated for orthopaedic trauma.ResultsThe median OSATS score in the intervention group was 49 (±4.93, range 39-55) compared to 17 in the control group (±14.98, range 12-51). The median improvement was by 32 points (p = 0.02). The ICC between the two raters was 0.977.ConclusionsThis study has demonstrated objective benefits of a novel femoral nailing CTA tool in the enhancement of practical skills for junior trainees in the DIS setting. This adds to the growing evidence supporting the use of CTA in orthopaedic training. This tool can be accessed remotely, is contact free and allows repeated sustained practice which is key in simulation training.Crown Copyright © 2021. Published by Elsevier Ltd. All rights reserved.

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