Abstract
The prototypical conjoint or so-called "chimeric" free flap heretofore has been composed of several large independent flaps, each supplied by a separate major branch, that ultimately arise from a common source vessel. The perforator-based type of chimeric flap is a relatively new concept, usually involving multiple muscle perforator flaps each based on a solitary musculocutaneous perforator, but still arising from the same "mother" vessel. This principle of split cutaneous perforator flaps has been now successfully adapted to the medial suralMEDIAL GASTROCNEMIUS perforator free flap on 2 separate occasions. As a chimeric flap, there was greater flexibility in insetting, and overall flap width may be larger but still narrow enough to allow primary donor site closure; and yet, by definition, only a single recipient site was needed for any microanastomoses. This is further proof that the perforator-based chimeric free flap may be an option for any muscle perforator flap donor site, so that potential donor territories for conjoint flaps have become virtually unlimited.
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