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Authors Law KE, Gwillim EC, Ray RD, D'Angelo AD, Cohen ER, Fiers RM, Rutherford DN, Pugh CM
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Journal Am. J. Surg. Volume: 212 Issue: 4 Pages: 609-614
Publish Date 2016 Oct
PubMed ID 27586850

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.Residents’ laparoscopic skills were evaluated during a simulated laparoscopic ventral hernia repair for motor coordination errors when grasping for intra-abdominal mesh or suture. Tolerance was defined as repeated, failed attempts to correct an error and the time required to recover.Residents (N = 20) committed an average of 15.45 (standard deviation [SD] = 4.61) errors and 1.70 (SD = 2.25) motor coordination errors during mesh placement. Total errors correlated with motor coordination errors (r18 = .572, P = .008). On average, residents required 5.09 recovery attempts for 1 motor coordination error (SD = 3.15). Recovery approaches correlated to total error load (r13 = .592, P = .02).Residents’ motor coordination errors and recovery approaches predict total error load. Error tolerance proved to be a valid assessment metric relating to overall performance. Copyright © 2016 The Board of Regents of the University of Wisconsin System