1999
DOI: 10.1016/s0029-7844(99)00287-2
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Incision characteristics associated with six laparoscopic trocar-cannula systems: a randomized, observer-blinded comparison

Abstract: Blunt conical trocar-cannula systems resulted in significantly smaller fascial defects compared with the widely used pyramidal and the two cutting-dilating trocar-cannula systems tested. These differences have potential clinical implications. For example, smaller fascial defects could reduce risk of incisional hernia and dehiscence.

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Cited by 45 publications
(34 citation statements)
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“…Following the removal of each trocar, we used a digital caliper to measure the maximal superficial defect length and the mean superficial defect area according to the technique described by Tarnay and colleagues. 17 Additionally, the trocar insertion site outlines were photographed, scanned, and uploaded onto a computer. ImageJ, an image-processing software developed by the National Institute of Health (National Institutes of Health, Bethesda, MD) was used to calculate the superficial defect area.…”
Section: Three-dimensional Trocarsmentioning
confidence: 99%
“…Following the removal of each trocar, we used a digital caliper to measure the maximal superficial defect length and the mean superficial defect area according to the technique described by Tarnay and colleagues. 17 Additionally, the trocar insertion site outlines were photographed, scanned, and uploaded onto a computer. ImageJ, an image-processing software developed by the National Institute of Health (National Institutes of Health, Bethesda, MD) was used to calculate the superficial defect area.…”
Section: Three-dimensional Trocarsmentioning
confidence: 99%
“…Furthermore, separation (rather than transection) of musculature has been observed with blunt trocar insertion, and this separation generally re-apposes after trocar removal [7,8] .…”
Section: Discussionmentioning
confidence: 99%
“…thick plastic as compared to thin steel) may add several millimeters to the outside diameter of the cannula (despite a similar internal diameter), and this may result in a larger radius of tissue damage. Second, factors such as the angle of insertion, repeated movements of the cannula while changing instruments, the use of large forces to insert the trocar, and multiple thrusting attempts during entry can impact fascial damage [7,9] . Third, forced dilation of the fascial layer during specimen removal may increase port-site damage and might be involved with occurrence of trocar-site hernias [10,11] .…”
Section: Discussionmentioning
confidence: 99%
“…Bei portaler Hypertension und entsprechenden Kollateralkreisläufen ist ggf. eine Dopplersonographie zur Lokalisation und Markierung der Gefäße sinnvoll [59].Verschiedene Analysen konnten die signifikante Reduktion von Blutungskomplikationen und Fasziendefekten mit geringerer Inzidenz von Trokarnarbenhernien durch die Verwendung von konischen Obturatoren oder dilatierenden Trokaren außerhalb der Linea alba belegen [17,35,49,50,52,53].…”
Section: Prophylaxe Von Verletzung Der Bauchwandgefäßeunclassified