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  • 267
  • 2006-09-04

Closure of Petersen’s defect in Roux-en-Y gastric bypass: anatomical landmarks and technical tips

Epublication WebSurg.com, Sep 2006;06(09). URL:
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Internal hernia is a known complication after gastric bypass, especially when performed laparoscopically. Potential internal locations include a transverse mesocolon defect; Petersen’s space, the area between the mesentery of the Roux limb and the transverse mesocolon; and a jejunojejunostomy mesenteric defect. Herewith is the description of our standard technique of routine closure of Petersen's space with 2/0 non-absorbable sutures.