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The Abbé lip-switch procedure1 is the most useful technique in the repair of full-thickness defects or deformities of the upper lip. The patient must, however, endure discomfort for 1 to 2 weeks until the vascular pedicle is separated. As a result, this operation is not always suitable for younger or elderly patients with communication problems. Therefore, the author developed a one-stage lip-switch flap procedure, isolating the vascular pedicle for about 5.5 cm in length.
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Hisashi Ohtsuka (1985) studied this question.
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