THE ROLE OF FREE TISSUE TRANSFER FOLLOWING ONCOLOGIC RESECTION IN THELOWER-EXTREMITY

The current treatment of extremity sarcomas is multimodal, consisting of limb-sparing surgery, adjuvant radiotherapy, and/or chemotherapy. T his approach has decreased the need for amputations and increased the demand for coverage of large composite defects. To date, the role of m icrosurgery in lower extremity reconstruction after oncologic resectio n has not been well defined. This study reviews a single center's expe rience with free tissue transfer for reconstruction of the lower extre mity after oncologic resection. Fifty-nine free flaps were performed i n 57 patients over a 5-year period. Forty-six patients (78%) underwent primary reconstruction and 35 patients (61%) received adjuvant therap y. Overall flap success rate was 96.6%. Most flaps were soft-tissue ty pes including musculocutaneous (78%), skin only (11%), and muscle plus skin graft (4%) Osteocutaneous flaps were uncommon. There were major complications in 12% and minor complications in 7%. This study demonst rates that free tissue transfer for lower extremity reconstruction fol lowing oncologic resection has a high success rate that is similar to other free flap applications. It has become an integral part of lower extremity sarcoma management. Free flaps permit uninterrupted adjuvant therapy and enhance the efficacy of limb salvage surgery.