M Patrzyk1,2, M Klee3, T Stefaniak4, C D Heidecke3, K Beyer5. 1. Department of Surgery, Clinic of General Surgery, Visceral, Thoracic and Vascular Surgery, Ernst-Moritz-Arndt-University Hospital, Greifswald, Germany. patrzyk@uni-greifswald.de. 2. Department of General Surgery, Visceral, Thoracic and Vascular Surgery, Universitätsmedizin Greifswald, Ferdinand-Sauerbruchstr. 1, 17475, Greifswald, Germany. patrzyk@uni-greifswald.de. 3. Department of Surgery, Clinic of General Surgery, Visceral, Thoracic and Vascular Surgery, Ernst-Moritz-Arndt-University Hospital, Greifswald, Germany. 4. Department of General, Endocrine and Transplant Surgery, Medical University of Gdansk, Gdańsk, Poland. 5. Charité - Universitätsmedizin Berlin, Campus Benjamin Franklin, Hindenburgdamm 30, 12203, Berlin, Germany.
Abstract
BACKGROUND:3D laparoscopy has proven to be superior to the 2D approach in experimental settings. The aim of the present study was to investigate the influence of 3D laparoscopy using a novel head-mounted display on the performance of defined steps within a laparoscopic inguinal hernia repair. This effect was investigated both in laparoscopically advanced surgeons and in beginners. METHODS:Patients suffering from symptomatic inguinal hernia were randomly assigned to laparoscopic hernia repair using either a head-mounted 3D display or a conventional 2D laparoscopic approach. Operative performance of both groups was compared in terms of the time taken for mesh placement and for peritoneal suturing. Additionally, quality of imaging and physical discomfort were assessed. RESULTS: The use of a head-mounted 3D display was able to shorten the time required for placement of the mesh as well as that for peritoneal suturing, both for experienced and novice surgeons when compared to the conventional 2D approach. 3D laparoscopy was significantly superior to 2D laparoscopy in terms of depth perception, image sharpness and image contrast. Additionally, increased impairment caused by ghosting effects could not be detected in 3D laparoscopy. Evaluation of image quality was independent of experience in laparoscopic surgery. However, use of a head-mounted 3D display resulted in a significant impairment of surgeon's comfort when compared to 2D laparoscopy. Thereby, the greatest impairment was caused by ear discomfort. CONCLUSIONS: This is the first study examining the effect of a head-mounted 3D system on the performance of laparoscopy in a randomized controlled trial (RCT) showing a clear advantage of this system in surgical performance as well as in depth perception and image quality.
RCT Entities:
BACKGROUND: 3D laparoscopy has proven to be superior to the 2D approach in experimental settings. The aim of the present study was to investigate the influence of 3D laparoscopy using a novel head-mounted display on the performance of defined steps within a laparoscopic inguinal hernia repair. This effect was investigated both in laparoscopically advanced surgeons and in beginners. METHODS:Patients suffering from symptomatic inguinal hernia were randomly assigned to laparoscopic hernia repair using either a head-mounted 3D display or a conventional 2D laparoscopic approach. Operative performance of both groups was compared in terms of the time taken for mesh placement and for peritoneal suturing. Additionally, quality of imaging and physical discomfort were assessed. RESULTS: The use of a head-mounted 3D display was able to shorten the time required for placement of the mesh as well as that for peritoneal suturing, both for experienced and novice surgeons when compared to the conventional 2D approach. 3D laparoscopy was significantly superior to 2D laparoscopy in terms of depth perception, image sharpness and image contrast. Additionally, increased impairment caused by ghosting effects could not be detected in 3D laparoscopy. Evaluation of image quality was independent of experience in laparoscopic surgery. However, use of a head-mounted 3D display resulted in a significant impairment of surgeon's comfort when compared to 2D laparoscopy. Thereby, the greatest impairment was caused by ear discomfort. CONCLUSIONS: This is the first study examining the effect of a head-mounted 3D system on the performance of laparoscopy in a randomized controlled trial (RCT) showing a clear advantage of this system in surgical performance as well as in depth perception and image quality.
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