Component separation

Rebecca C. Novo, Morad Askari

Research output: Chapter in Book/Report/Conference proceedingChapter


Component separation technique can be used to repair large, midline, abdominal wall hernias due to a variety of etiologies. This can be combined with underlay biologic or synthetic mesh when indicated. The procedure is performed under general anesthesia, with subcutaneous flaps raised either unilaterally or bilaterally, from the costal margin to the pubis, and laterally to the anterior superior iliac spine. Attempt is made to preserve as many skin perforating vessels as possible. The external oblique fascia is incised lateral to the lateral border of the rectus abdominis, which is extended from the costal margin to the inguinal ligament sharply and bluntly. If performed bilaterally, this should allow for 5-6 cm of advancement in the upper third per side, 10 cm in the mid-abdomen per side, and 3-5 cm in the lower third per side. Biologic or synthetic mesh can be placed as an underlay for reinforcement, or inlay bridge for larger defects. Possible complications include seroma, hematoma, infection, adhesions, skin necrosis, or ischemia.

Original languageEnglish (US)
Title of host publicationOperative Dictations in Plastic and Reconstructive Surgery
PublisherSpringer International Publishing
Number of pages3
ISBN (Electronic)9783319406312
ISBN (Print)9783319406299
StatePublished - Jan 1 2016


  • Abdominal wall defect
  • Abdominal wall reconstruction
  • Component separation
  • Hernia

ASJC Scopus subject areas

  • Medicine(all)


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