Definition: flap designed with segments, A and B, so that flap A rotates into the recipient defect, flap B closes the defect left by flap A, and the flap B donor site is closed primarily. Usually designed as a rotation flap and employed where donor tissue is scarce. Because flap B closes flap A's donor site, the true donor defect is moved farther from the original recipient site into a region that will permit primary soft tissue closure.
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Examples: glitazone, GI cocktail, etc.