Comparing Feedback Techniques in Bilobe Flap Simulation Using 3D‐Printed Facial Models

Objective To compare live versus delayed feedback on trainee performance of bilobe flaps using 3‐dimensional (3D)‐printed facial simulators and determine whether these effects are sustained on repeat performance. Study Design Cohort study. Setting University of Arkansas for Medical Sciences. Methods 3D‐printed facial models with a nasal ala defect were provided to 18 subjects. Subjects were stratified and randomized based on their training level into 1 of 3 groups corresponding to live feedback (Group 1), delayed feedback (Group 2), and no feedback (Group 3). Subjects performed a bilobe flap following a structured lecture. Four weeks later, subjects independently repeated the exercise on the contralateral ala. Likert surveys were used to assess subjective parameters. Objective grading was performed by a plastic surgeon, which included a point system and score for the overall appearance. Results Following exercise 1, Group 1 reported a significant improvement in knowledge (P