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The creation of leakage holes in the intestinal wall by four types of swaged-on needles used to close enterotomy incisions in canine cadavers was studied. Twenty-four enterotomies were performed in 10 cm jejunal sections obtained from five dogs following euthanasia. After placement of Doyen intestinal forceps to the ends of each section, a 3 cm antimesenteric incision was performed and closed using 4-0 polydioxanone suture armed in a swaged-on needle in a simple interrupted pattern. One group served as control, with no enterotomies performed. The four groups that we used consisted of six sections each: group CC was closed with a polydioxanone suture armed in a conventional cutting needle, group RC was closed with a reversed cutting needle, group TPP was closed with a taper point plus needle, and group TC was closed with a taper cutting needle. Leak testing was performed by infusion of 13.5 mL methylene blue solution into the intestinal lumen. Significant differences between leakage and non-leakage sections of group CC were detected ( P =.027). No statistical differences were detected among other groups. Conventional cutting needles seem to create leaking holes in cadaveric healthy jejunum during needle passage for closing an enterotomy incision.

Investigation of leakage holes created by four needle types used for closure of canine enterotomies