The distally based superficial sural flap: our experience in reconstructing the lower leg and foot.

The treatment of soft-tissue defects of the lower third of the leg and foot is often an awkward problem to tackle because of the frequent involvement of muscle, tendon, and bone, which is caused by the thinness and poor circulation of the skin covering them and by the small quantity of local tissue available for reconstruction. The authors present their experience with the use of sural flaps for the treatment of small- and medium-size defects of the distal region of the lower limb. The flap used was a distally based fasciocutaneous flap raised in the posterior region of the lower two thirds of the leg. Vascularization was ensured by the superficial sural artery, which accompanies the sural nerve together with the short saphenous vein. The authors treated 18 patients (12 men and 6 women) from May 1997 to August 1999 at the Division of Plastic Surgery, University of Turin, Italy. Superficial necrosis without involvement of the deep fascia (which was grafted 1 month later) occurred in 1 patient of the 18 treated. In another 2 patients, defects were found in the flap margins, but no additional surgical revision was necessary, and recovery occurred by secondary intention. In every patient the sural flaps provided good coverage of the defects, both from a functional and an aesthetic point of view. The major advantages of this flap are its easy and quick dissection. Because the major arterial axis is not sacrificed, this flap can be used in a traumatic leg with damaged major arteries.