Study design
mistakes
In this randomized controlled monocentric study, subjects were assigned to either the control or intervention group. Both groups learned laparoscopic suturing and knot tying in teams of two by video-based instructions. The intervention group was provided with laparoscopic suturing and knot tying instruction videos with various coping strategies for common errors (coping videos), as well as error-free instruction (mastery video). In addition, the intervention group was regularly instructed to actively analyze their own mistakes by means of a questionnaire (Fig. Flowchart of the study [Primary endpoint of the study represented the number of knot attempts and total training time until reaching proficiency criteria based on Knot Quality Score, the OSATS Procedural Checklist, and knot time of max 2:00 min. Secondary endpoints were parameters relevant to learning psychology–satisfaction with own expectation, self-efficacy expectation, and current motivation recorded by the validated questionnaires.
