Regional or interpolation flaps are not quickly adjacent to the defect. Instead, the freed tissue "island" is moved over or underneath normal tissue to arrive at the defect to be filled, with the blood supply actually associated with the donor site by means of a pedicle. This pedicle can be eliminated later on after fresh blood supply has formed.
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- ex: PMMC,DP folds for head and neck defects
- TRAM flap for breast reconstruction
- Groin flap for hand defects
Conclusions:
Regional and free flaps appear to contend in many cases for similar signs. Regional flaps can be viewed as reliable reconstructive decisions that are more affordable than their free flap alternatives. The "restoration" of regional flaps can be to some extent supported by the progressions in the global economy and the necessary adaptation of developed and developing nations.