DIGASTRIC MUSCLE BIPEDICLE FLAP USED FOR ORAL FLOOR RECONSTRUCTION

概要

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Material and methods: Nine cases of oral floor reconstruction are examined, in which the digastric muscle bipedicle flap was used for oral floor reconstruction after the oral cancer had been removed surgically by the pull-through method. The fascia of the digastric muscle was kept when doing conservative neck dissection. The digastric muscle was sewn up to the inferior margin of the mandible after tumor resection, and then the oral floor was formed. A tongue tip was formed, and the wounded area of the mouth was left with a raw surface. The patients' postoperative speech intelligibility was evaluated with the 10-point scoring system of Hirose, and eating function was evaluated using the system of Fujino. Results: There were no occurrences of salivary fistula or aspiration, and oral intake was possible by the tenth postoperative day. Eating function and speech intelligibility were excellent in all patients. One patient experienced a recurrence in which free flap reconstruction was necessary. Conclusion: We report an effective method for oral floor reconstruction, but note that for greater functional improvement, a device to induce flexibility in the oral floor would be required. Free flap reconstruction is needed in cases where there is a recurrence after the initial surgery.
日本頭頸部癌学会の論文