Medial sural artery perforator flap following orbital exenteration.

An extended orbital exenteration defect in a male in his mid-80s was successfully reconstructed with a medial sural artery perforator flap. To our knowledge, this flap has not been described in the literature for such defects until now. While it may require meticulous intramuscular perforator dissection, it provides several advantages; it is thin, pliable, has a long pedicle of large calibre facilitating microanastomosis and provides adequate coverage where the amount of chimeric muscle can easily be tailored to the defect's surface area and volume. In addition, its robust vascular supply can withstand volume changes post radiation therapy. Two years after surgery, the patient has healed well with an excellent functional outcome.