Users Online : 424 About us |  Subscribe |  e-Alerts  | Feedback | Login   
Journal of Minimal Access Surgery Current Issue | Archives | Ahead Of Print Journal of Minimal Access Surgery
           Print this page Email this page   Small font sizeDefault font sizeIncrease font size 
 ¤   Next article
 ¤   Previous article
 ¤   Table of Contents

 ¤   Similar in PUBMED
 ¤Related articles
 ¤   Citation Manager
 ¤   Access Statistics
 ¤   Reader Comments
 ¤   Email Alert *
 ¤   Add to My List *
 * Requires registration (Free)

 Article Access Statistics
    PDF Downloaded77    
    Comments [Add]    

Recommend this journal


Year : 2020  |  Volume : 16  |  Issue : 4  |  Page : 355-359

Higher quality camera navigation improves the surgeon's performance: Evidence from a pre-clinical study

Department of General, Visceral and Transplant Surgery, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany

Correspondence Address:
Prof. Dr. Werner Kneist
Department of General, Visceral and Transplant Surgery, University Medicine of the Johannes Gutenberg, University Mainz, Langenbeckstraβe 1, Mainz 55131
Login to access the Email id

Source of Support: None, Conflict of Interest: None

DOI: 10.4103/jmas.JMAS_143_19

Rights and Permissions

Introduction: To objectively assess the quality of laparoscopic camera navigation (LCN), the structured assessment of LCN skills (SALAS) score was developed and validated for laparoscopic cholecystectomy. The aim of this pre-clinical study was to investigate the influence of LCN on surgical performance during virtual cholecystectomy (vCHE) using this score. Methods: A total of 84 medical students were included in this prospective study. Individual characteristics were assessed with questionnaires. Participants completed a structured 2-day training course on a validated virtual reality laparoscopic simulator. At the end of the course, all students took over LCN during vCHE, all performed by the same surgeon. The numbers of errors regarding centering, horizon adjustment and instrument visualisation as well as manual and verbal corrections by the surgeon were recorded to calculate the SALAS score (range 5–25) to investigate the influence of LCN on surgical performance. The study population was divided by the recorded SALAS score into low and medium performers (Group A; 1st–3rd quartile; n = 60) and high performers (Group B, 4th quartile, n = 21). Results: The SALAS score of the camera assistant correlates positively with the surgeon's overall performance in vCHE (P < 0.001), and the surgeon's virtual laparoscopic performance was significantly better in Group B (P < 0.001). Moreover, a significantly shorter operation time during vCHE was shown for Group B (Median (IQR); Group A: 508 s [429 s; 601 s]; Group B: 422 s [365 s; 493 s]; P = 0.001). Frequent gaming and a higher self-confidence to assist during a basic laparoscopic procedure were associated with a higher SALAS score (P = 0.013). Conclusion: In this pre-clinical setting, the surgeon's virtual performance is significantly influenced by the LCN quality. LCN by high performers resulted in a shorter operation time and a lower error rate.


Print this article     Email this article

© 2004 Journal of Minimal Access Surgery
Published by Wolters Kluwer - Medknow
Online since 15th August '04