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A simple scoring system to train surgeons in basic laparoscopic skills


Shepherd, Gregory; von Delft, Dirk; Trück, Johannes; Kubiak, Rainer; Ashour, Khaled; Grant, Hugh (2016). A simple scoring system to train surgeons in basic laparoscopic skills. Pediatric Surgery International, 32(3):245-252.

Abstract

AIM
To develop and validate a scoring system for a training assessment tool using a box trainer which can objectively demonstrate progression in laparoscopic skills.
METHOD
170 assessments were performed over a 5-year period by doctors working in a busy paediatric surgical department. Each participant was scored based on experience and then undertook six laparoscopic tasks in a box trainer in a dry skills lab. The quicker and more accurate the performance, the lower the score. Validity and reliability tests were applied.
RESULTS
Pearson correlation coefficient demonstrated that more experienced surgeons performed better than novices with an r of -0.63 (p < 0.001). The mean assessment scores improved (reduced) with increasing experience score [4140 (0-20), 2696 (21-40), 1969 (>40) p < 0.001]. Improvement in score was seen at all experience levels with greatest improvement seen in the less experienced (2315, 1820, 1571 p < 0.001). Cronbach's alpha was 0.70 and the intraclass correlation coefficient for test-retest reliability was 0.81.
CONCLUSION
Construct validity with adequate reliability has been demonstrated for this simple training tool and scoring system. All experience levels demonstrated improvement in their laparoscopic skills by simulation training in a laparoscopic box trainer.

Abstract

AIM
To develop and validate a scoring system for a training assessment tool using a box trainer which can objectively demonstrate progression in laparoscopic skills.
METHOD
170 assessments were performed over a 5-year period by doctors working in a busy paediatric surgical department. Each participant was scored based on experience and then undertook six laparoscopic tasks in a box trainer in a dry skills lab. The quicker and more accurate the performance, the lower the score. Validity and reliability tests were applied.
RESULTS
Pearson correlation coefficient demonstrated that more experienced surgeons performed better than novices with an r of -0.63 (p < 0.001). The mean assessment scores improved (reduced) with increasing experience score [4140 (0-20), 2696 (21-40), 1969 (>40) p < 0.001]. Improvement in score was seen at all experience levels with greatest improvement seen in the less experienced (2315, 1820, 1571 p < 0.001). Cronbach's alpha was 0.70 and the intraclass correlation coefficient for test-retest reliability was 0.81.
CONCLUSION
Construct validity with adequate reliability has been demonstrated for this simple training tool and scoring system. All experience levels demonstrated improvement in their laparoscopic skills by simulation training in a laparoscopic box trainer.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:04 Faculty of Medicine > University Children's Hospital Zurich > Medical Clinic
Dewey Decimal Classification:610 Medicine & health
Language:English
Date:March 2016
Deposited On:15 Feb 2019 09:50
Last Modified:15 Feb 2019 09:51
Publisher:Springer
ISSN:0179-0358
OA Status:Closed
Publisher DOI:https://doi.org/10.1007/s00383-015-3841-6
PubMed ID:26597708

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