Free posterior tibial artery perforator flap for floor of mouth reconstruction: a case report.

In this report, we present a case with floor of mouth squamous cell carcinoma who underwent wide excision of tumor, a marginal mandibulectomy and bilateral selective neck dissections. A 7 cm × 4 cm fasciocutaneous flap based on a posterior tibial artery perforator (PTAP) from the left posterior leg was harvested to reconstruct a floor of the mouth defect. The donor-site defect was closed primarily. The flap survived in its entirety. No donor or recipient site complications occurred. The patient tolerated a regular diet at 3-month follow-up with normal speech and leg function. To our knowledge, there has been no previous report on the use of the PTAP flap for floor of mouth reconstruction. Our experience has shown the PTAP flap could be one of options for small defects.