"On demand" posterior tibial artery perforator flaps: a versatile surgical procedure for reconstruction of soft tissue defects of the leg after tumor excision.

Relatively small soft-tissue defects of the lower leg following tumor excision are usually treated, especially in older patients, by split-thickness skin grafting. On specific sites where periosteum or paratenon is exposed, as well as when a skin graft is best avoided for cosmetic reasons, an excellent alternative option is the use of posterior tibial artery perforator flaps.Such flaps are designed and elevated "on demand," ie, according to the defect location and on whichever perforator is best found suited to supply the flap and allow adequate transposition.However, operative time is longer, and the surgeon needs to be judicious in dissection, as well as versatile in choosing the best flap design after identifying a suitable perforator.Between 2003 and 2008, 24 patients underwent this procedure, with uniformly successful result except for 2 partial flap necrosis.The advantages of posterior tibial artery perforator flaps are a quick and usually safe procedure, which provides good contour with excellent color, texture, and thickness match, with long-term stability of the reconstruction at the expense of minimal donor-site morbidity.