Department of Surgery, Division of Plastic Surgery, Federal University of Sao Paulo, Rua: Napoleão de Barros, 714 - 4o. andar. Vila Clementino, 04024-002, São Paulo - SP, Brazil.
J Plast Reconstr Aesthet Surg. 2010 Mar;63(3):524-31. doi: 10.1016/j.bjps.2008.12.008. Epub 2009 Feb 13.
The purpose of this study is to evaluate and compare the effect of the incision of the external oblique aponeurosis along the semilunaris in amount of tension present after the undermining of the anterior rectus sheaths. Forty fresh adult cadavers were studied and divided into two groups: group A (n=20) and group B (n=20). Traction indexes were compared in three situations: (1) before any aponeurotic undermining (similar on both groups); (2) after incision and undermining of the anterior rectus sheaths (similar on both groups) and (3) group A: after undermining of the external oblique muscles with the incision of their aponeurosis along the semilunaris and group B: undermining of a continuous layer of the anterior rectus sheaths and the external oblique aponeurosis, after release of the lateral aspect of the rectus sheaths. Significance of differences was assessed using non-parametric tests. There was a significant tension reduction after each stage of dissection in both supra- and infra-umbilical levels and on both groups. Comparisons between groups A and B did not show statistically significant differences in all sites and stages of the dissections. Therefore, both techniques showed similar aponeurotic tension reduction after each stage of the dissections in cadavers.
本研究旨在评估和比较沿半月线切开腹外斜肌腱膜切口对前鞘下筋膜间隙分离后张力的影响。对 40 具新鲜成人尸体进行研究，分为两组：A 组（n=20）和 B 组（n=20）。比较了三种情况下的牵引指数：（1）前鞘未切开时（两组相似）；（2）前鞘切开并分离后（两组相似）；（3）A 组：沿半月线切开腹外斜肌腱膜并分离腹外斜肌后，B 组：连续切开前鞘和腹外斜肌腱膜后，游离前鞘外侧。使用非参数检验评估差异的显著性。在脐上和脐下水平以及两组中，每个解剖阶段后张力均显著降低。A 组和 B 组之间的比较在所有部位和解剖阶段均无统计学差异。因此，两种技术在尸体的每个解剖阶段均显示出相似的腱膜张力降低。
