Free radial forearm flap with adipofascial tissue extension for reconstruction of oral cancer defect |
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Authors: | Jeng Seng-Feng Kuo Yur-Ren Wei Fu-Chan An Po-Chung Su Chih-Ying Chien Chih-Yen |
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Affiliation: | Departments of Plastic and Reconstructive Surgery, Chang Gung Memorial Hospital at Kaohsiung, Taiwan, Chang Gung University, Taiwan. |
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Abstract: | The radial forearm flap has been one of the most popular flaps used to reconstruct defects after oral cancer ablation. However, it sometimes may not provide sufficient soft tissue to obliterate the dead space after tumor excision and lymph node dissection, which can result in deep wound infection of the neck or even orocervical fistula. The authors modified the radial forearm flap with a sheet of adipofascial tissue extension to prevent such postoperative complications. From January 1997 to December 2000, 52 patients who underwent ablative oral cancer surgery were studied. A total of 29 patients (group I) underwent reconstruction with the traditional radial forearm flap retrospectively, and 23 patients (group II) underwent reconstruction with the radial forearm flap along with a sheet of adipofascial tissue extension. The radial forearm flap was designed on the axis of the radial artery, was 8 x 4 to 12 x 10 cm in size, and was sufficient to resurface the intraoral defect. In group II, the radial forearm skin flap along with a sheet of adipofascial tissue 8 x 8 to 12 x 10 cm was used to obliterate the dead space of the oral floor and neck. The donor site of both groups was resurfaced with a split-thickness skin graft. In group II, the skin flap of the adipofascial tissue was resutured to its original site. Two flaps in group I failed because of arterial occlusion and required other skin flaps for reconstruction. Postoperative hematoma, which required surgical treatment for drainage, developed in five patients in group I. None of the patients in group II had hematoma formation. Nine patients in group I had a neck wound infection compared with only 2 patients in group II (a significant difference). The average volume of drainage and days of hospitalization were similar in both groups. The morbidity of the donor site of both groups was not significant. The advantages of this modification include 1) suitable soft tissue available for dead space obliteration to decrease the chance of postoperative hematoma; 2) the important vessels in the neck can be protected; 3) there is a decrease in neck wound infections; and 4) donor site morbidity is similar to the traditional group. |
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