Objective: to develop a method for extension of the Posterior interosseous reverse flow flap and to im - prove its reliability.
目的:提出一种延长骨间背侧逆行皮瓣和增加其可靠性的方法。
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A mechanical component with two rings pivoted on axes at right angles to each other allowing movement in two directions used in the flapextension and retraction system.
The choice of pedicled or free flap depended on the size and the extension of defect, history of surgery in neck or preoperative radiotherapy, and general status of the patient.