Greenall M J, Evans M, Pollock A V
Br J Surg. 1980 Mar;67(3):188-90. doi: 10.1002/bjs.1800670308.
Five hundred and seventy-nine patients undergoing major laparotomy were randomly allocated to have midline or transverse incisions. Transverse incisions took longer to make and caused more bleeding but (in the absence of wound sepsis) no transverse wound burst and there were only 2 incisional hernias. In the midline group, without wound sepsis, there were 2 burst abdomens and 9 incisional hernias. When, however, those patients who suffered wound sepsis were also considered, there were no significant differences between the two groups.
579例行大剖腹手术的患者被随机分配接受正中切口或横切口。横切口所需时间更长且出血更多，但（在无伤口感染的情况下）没有横切口裂开，仅有2例切口疝。在正中切口组，无伤口感染时，有2例腹部裂开和9例切口疝。然而，当把那些发生伤口感染的患者也考虑在内时，两组之间没有显著差异。
