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Using motion analysis to provide feedback in microsurgery education
Ji Son MD, Thomas Satterwhite MD, Devra Becker MD
UH Plastic Surgery
2014-03-15
Presenter: Ji Son
Affidavit:
Director Name: Soltanian
Author Category: Resident Plastic Surgery
Presentation Category: Clinical
Abstract Category: General Reconstruction
Motion analysis has been utilized in sports to provide feedback for acquisition and improvement in skills by delineating metrics that can be modified to attain proficiency. We sought out a method to provide constructive, immediate feedback. We used three models (practice card, PTFE graft, and chicken foot) for sixteen plastic surgery trainees (Post-Graduate Year 1-6) to practice microsurgery. The sessions were recorded using a camera built in the microscope, which were viewed and evaluated by senior attending surgeons using a previously validated global ratings scale. Subsequently, residents' motions were analyzed using a motion analysis software (MotionAnalysis) for hand angles, number of movements, velocity and acceleration of movements in specific tasks such as cutting and knot tying. The results were compared to that of an expert microsurgeon who participated in the same exercises to define "ideal" movement sequences.
As expected, senior trainees performed on average better than junior trainees. Motion analysis provides identification of superior, reproducible metrics that allow assessment and comparison of experts versus residents. By providing immediate feedback, the residents are able to gain insights into the structure and acquisition of microsurgery to guide improvement of performance. Motion analysis has a potential in the operating room, where it may be used to analyze recorded intra-operative microsurgery procedures.
