Drew N. Rutherford

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BACKGROUND The aim of this study was to evaluate validity evidence using idle time as a performance measure in open surgical skills assessment. METHODS This pilot study tested psychomotor planning skills of surgical attendings (n = 6), residents (n = 4) and medical students (n = 5) during suturing tasks of varying difficulty. Performance data were(More)
The demand for competency-based assessments in surgical training is growing. Use of advanced engineering technology for clinical skills assessment allows for objective measures of hands-on performance. Clinical performance can be assessed in several ways via quantification of an assessee's hand movements (motion tracking), direction of visual attention (eye(More)
BACKGROUND The aim of this study was to investigate how tissue characteristics influence psychomotor planning and performance during a suturing task. Our hypothesis was that participants would alter their technique based on tissue type with each subsequent stitch placed while suturing. MATERIALS AND METHODS Surgical attendings (n = 6), residents (n = 4),(More)
BACKGROUND The aim of this study was to evaluate working volume as a potential assessment metric for open surgical tasks. METHODS Surgical attendings (n = 6), residents (n = 4), and medical students (n = 5) performed a suturing task on simulated connective tissue (foam), artery (rubber balloon), and friable tissue (tissue paper). Using a motion tracking(More)
BACKGROUND The study investigates the relationship between motor coordination errors and total errors using a human factors framework. We hypothesize motor coordination errors will correlate with total errors and provide validity evidence for error tolerance as a performance metric. METHODS Residents' laparoscopic skills were evaluated during a simulated(More)
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