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On-line version ISSN 1678-4596
BRUN, Maurício Veloso et al. Mechanical failure of incisionals colopexys by laparoscopic or open surgery in dogs. Cienc. Rural [online]. 2004, vol.34, n.3, pp. 839-845. ISSN 1678-4596. http://dx.doi.org/10.1590/S0103-84782004000300028.
In the present study the traction resistance and histological features of incisional colopexys made by open or laparoscopic surgery were evaluated. For this purpose, 15 mongrel dogs were located in two groups. In the GL group (n= 8) the colopexy adhesion was made by a laparoscopic surgery, and in GA group (n= 7) by a celiotomy. For the laparoscopic procedures the dogs were positioned in dorsal decubitus and four trocars were introduced in the left and right position of umbilical region. The incisions produced in descendent colon and in the abdominal wall were sutured in two layers of intracorporeal suturing. In the GA group the colon suture was similar to the realized in GL group. Fourteen days after the surgeries the dogs were killed to collect samples of abdominal wall and colon descendent, which were used in resistance tests and in histological evaluations. The total surgery time and colon fixation time were higher in the GL group (p< 0.0001) then GA. The maximum tensile load were similar in both groups (p>0.05), and the rupture force in GL segments was 43.68±16.45N and in GA was 39.70±15.15N. No differences were found in histological examination between GL and GA groups, and in all dogs the fibers of collagen were mature. The results verified for the laparoscopic technique of colopexy, that presented surgical adhesions with similar quality of the provoked by a conventional technique, allow concluding that the laparoscopic procedure may be utilized as an alternative for rectal prolapse treatment in dogs.
Keywords : videolaparoscopy; endoscopic surgery; adhesions.