Experimental Investigation

How Deep Should The Double Vertical Incision Used In Tubularization For Hypospadias Be?

  • Mesut YAZICI
  • Onur ÖZTAN
  • Harun GÜRSOY

Received Date: 20.01.2009 Accepted Date: 03.03.2009 Meandros Med Dent J 2009;10(1):23-27


Tubularization is one of the techniques used in surgery of luminal organs and especially for hypospadias. In this study, the effects of incision depth on wound healing and luminal dimensions were investigated.


Seven New Zealand rabbits were used. On the skin of each rabbit, 6 tubes were constructed (3 were with deep incision and 3 were superficial) with a total of 42 for the experiment. On postoperative days 3, 5 and 21, one tube with deep incision and one with superficial incision were removed from the each rabbit. The tubes were stained with hematoxylin-eosine and Masson's trichrome dyes. They were examined for inflammation, fibrosis and luminal diameters. Mann-Whitney U variance analysis and Kruskal- Wallis tests were used for statistical analysis. P<0.05 was accepted for statistical significance.


When the superficial incision and deep incision groups were compared within groups, the luminal diameter on day 21st was satistically significantly larger than the 3rd and 5th days in both superficial and deep incision groups (p<0.05). When deep and superficial incision groups were compared for luminal diameter, no statistically significant difference was observed (p>0.05). No significant difference was observed among groups when compared for inflammation scores (p>0.05).


Since there is no significant difference for histopathological examination and luminal diameter between groups with deep and superficial vertical incisions, and to be able to achieve similar luminal diameters with double superficial vertical incisions, tubularization with double superficial vertical incisions is suggested to be applicable to hypospadias surgery.

Keywords: Hypospadias, tubularization, incision