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Journal of Korean Cleft Palate-Craniofacial Association 2006;7(1):13-18.
Clinical Experience of Radial Forearm and Anterolateral Thigh Perforator Faciocutaneous Free Flap for Hypopharyngeal Reconstruction.
Hyoung Gyo Lee, Min Seong Tark, Sang Kyu Kang, Ho Seong Shin, Jang Hyun Lee
Department of Plastic and Reconstructive Surgery, College of Medicine, Soonchunhyang University, Seoul, Korea. tarkms@hosp.sch.ac.kr
The reconstruction of hypopharynx after ablation of carcinoma is quite challengeable to plastic surgeons and requires the recovery of anatomic continuity and its own function such as swallowing and speech. Various surgical methods have been evolved through the years from local flap to microvascular free flap. The latter, obviously has improved the surgical outcome playing a main role in reconstruction of hypopharynx and universally been divided into visceral free transfer and fasciocutaneous free flap. Though lots of surgical options are reported depending on the shape and size of defect, patient's desires or surgeon's empirical background, no general agreement about the reconstruction of hypopharynx exists because the advantage of the one flap can be a disadvantage of the other and vice versa. The fasciocutaneous free flaps were used for reconstruction of hypopharynx in 18 patients, radial forearm free flap for 14 and anterolateral thigh perforator flap for 4 patients, respectively and indicated following that the first is the patients have partial defect that retain the remnant mucosa more than 50% of hypopharyngeal circumference. the second indication is the patient with previous abdominal operation and the third is the patient with risk of long ischemic time of transferred bowel. the last cases is the elderly patient with other comorbid condition even though the remnant mucosa are less than 50% of hypopharyngeal circumference. We have designed the flap to have a sufficient lumen of neohypopharyngeal diameter more than 4cm and the cephalic margin of hypopharynx be wider than caudal one, like a funnel shape, to eliminate the size discrepancy between the pharyngeal and esophageal lumen. The small triangular flap extension was designed in the caudal margin to prevent the distal enteric anastomosis site from the stricture, making the circumference of distal margin to be enlarged. In this paper, we contemplate our speculation for use of fasciocutaneous free flap for reconstruction of hypopharynx with surgical finesse to get a fine surgical outcome.
Keywords: Fasciocutaneous free flap; Hypopharyngeal reconstruction
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