For safe dissection of the navel, it is important to ensure that the tissue is fully supplied with blood. However, if too much adipose tissue is left, this may cause elevated pressure on the repositioned navel. In addition, the 'steal phenomenon' may result, since the adipose tissue left behind may require part of the blood supply. Compression of the abdominal wall using the abdominal bandage should not be too severe, as this may cause necroses of the distal end of the flap ("most poorly perfused area"). The distal end of the wound must never be undermined! Deep fixation of the navel requires precise localisation of the navel opening. A two-layer wound closure may be used if desired.
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