RESUMEN
BACKGROUND: The aim of this study was retrospectively to compare the incidence of incisional hernia formation at trocar sites in laparoscopic cholecystectomy with that after conventional open cholecystectomy. METHODS: In all, 271 patients with cholelithiasis underwent either laparoscopic cholecystectomy (LC group, n = 142) or open cholecystectomy (OC group, n = 129). In the OC group, the surgical approach was to use a right subcostal incision in 20.2%, right transrectal laparotomy in 73.6%, and midlaparotomy in 6.2%. Laparotomy closure was performed by continuous absorbable suture for the peritoneum and discontinuous absorbable stitches for muscle and fascia. Laparoscopic access was achieved by use of four trocars (two 10 mm and two 5 mm). Umbilical port closure was performed by suture of fascia using discontinuous stitches. Closure of the remaining ports was performed by suture of the skin. RESULTS: Both patient groups were statistically similar with respect to general risk factors. Follow-up was performed in 84 (65.1%) OC and 123 (86.6%) LC patients and ranged from 2 to 10 years (mean, 8 years) and 1 to 5 years (mean, 3 years) respectively. Five (5.9%) OC and two (1.6%) LC patients developed incisional hernias, although the difference between groups was not significant. All hernias in OC patients appeared after transrectal laparotomy. The LC hernias appeared at the umbilical port, and one of the patients developed an additional xiphoides port-associated hernia. CONCLUSIONS: The laparoscopic technique showed a lower (although not significantly) incidence of incisional hernias than the open procedure.