Tognini, João Ricardo F. (UFMS);

DANIELA, NEVES (UFMS);

SOUZA, ALEXSANDRO DE (UFMS);

Aydos, Ricardo Dutra (UFMS).

Acta Cirurgica Brasileira; volume 13, número 4, páginas 256-259. Outubro 1998.

Abdominal muscles;

Rats;

Freezing.

The purpose of the experiment was to study the effect of two ways of freezing on the valuation of the breaking strenght on rats’abdominal wall scars. It was used 30 male rats wistar to realize laparotomies with a standardized technique distributed in 3 groups of 10 rats. In the 14th postoperative day, rats of two groups were submitted to euthanasia and the front abdominal wall was removed (without skin) involving the scar, and those segments were stored in a freezer (-17° C) or in carbonic anidrid (-80° C) for 20 days before tested in a tensiometer. The third group (control) were subimitted to euthanasia and imidiately tested the breaking strenght . The resultant data were submitted to statistical analysis. It was concluded that the two ways of freezing don’t do interferences on the valuation of breking strengh on rat’s abdominal wall scars.