Figueiredo Carlos Manoel de Oliveira, Lima Sônia Oliveira, Xavier Júnior Sebastião Duarte, da Silva Caroline Baptista
Acadêmico de Medicina da Universidade Federal de Sergipe, SE, BR.
Rev Col Bras Cir. 2009 Aug;36(4):347-9. doi: 10.1590/s0100-69912009000400013.
To evaluate the anatomical differences of fetus and adults concerning the inguinal region of male gender, as well as the presence of possible morphological basis for the higher incidence of inguinal hernias in the right side in both groups.
Twenty human stillborn fetuses and twenty in natura adult male corpses were dissected in order to compare the length of the inguinal canals, the longer diameter of the deep and superficial inguinal rings in both sides of each corpse, and the presence or not of overlap between the deep and superficial rings.
No statistically significant differences were observed in both groups regarding the measures of the deep and the superficial rings, as well as the inguinal canals, when in comparison to the respective contralateral anatomical structures of each specimen. Nevertheless, there was a statistically significant difference between the diameter of homolateral inguinal rings, once the superficial ring was longer than the deep ring in fetus (p=0.0002) and adult corpses (p<0.0001). The ratio inguinal canal/height showed to be statistically different between both groups (p<0.0001), since the inguinal canal in fetus is shorter than in adults. It was also observed overlapping of homolateral superficial and deeper inguinal rings in two fetuses, but none in adults.
Morphometric analysis of the inguinal canals and rings does not justify the higher incidence of hernias in the right side in the male gender.
评估男性胎儿与成人腹股沟区的解剖差异，以及两组中右侧腹股沟疝发病率较高可能存在的形态学基础。
解剖20例人类死产胎儿和20例成年男性尸体，以比较腹股沟管长度、每具尸体两侧腹股沟深环和浅环的较长直径，以及深环和浅环之间是否存在重叠。
与每个标本的对侧相应解剖结构相比，两组在腹股沟深环、浅环以及腹股沟管的测量方面均未观察到统计学上的显著差异。然而，同侧腹股沟环的直径存在统计学上的显著差异，因为胎儿（p = 0.0002）和成年尸体（p < 0.0001）的浅环均长于深环。两组之间腹股沟管长度与身高的比值存在统计学差异（p < 0.0001），因为胎儿的腹股沟管比成人短。还观察到两例胎儿同侧腹股沟浅环和深环有重叠，但成人中未观察到。
腹股沟管和环的形态学分析不能解释男性右侧疝发病率较高的原因。
