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Conventional running suture and continuous double loop closure: an experimental study of wound strength
Y Cengiz1, P Månsson, L A Israelsson
1Department of Surgery, Sundsvall County Hospital, Sweden.
Objective:
To study the strength of laparotomy wounds closed by a continuous double loop technique or a conventional running suture, taking into account the ratio of suture length: wound length.
Design:
Experimental study.
Animals:
60 Sprague-Dawley rats.
Interventions:
Midline laparotomy incisions were closed with either a conventional running suture or a continuous double loop. Wounds were allocated to closure with a suture length: wound length ratio of 3, 4 and 7.
Main Outcome Measures:
Bursting pressure, bursting volume and the way the suture cut through the tissues.
Results:
With a suture length: wound length ratio of 3 or 4 bursting pressure and bursting volume were lower with a continuous double loop closure. A conventional running suture and a continuous double loop produced similar bursting pressure and bursting volume only if closure was with a ratio of 7.
Conclusions:
Wound bursting strength is higher with a conventional running suture than with a continuous double loop closure when the effect of the suture length: wound length ratio is accounted for.