将猪后脚用刀破瓣，再每隔1厘米横砍一刀至骨断皮连。
Pig valve broken rear foot with a knife, and then every 1 cm bone Hengkan to blow off even the skin.
结论运用超声刀行前臂皮瓣制备术，可以缩短手术时间、减少手术中出血量，可在临床推广应用。
Conclusion: Harmonic Scalpel using can significantly reduce the operation time and intraoperative bleed loss volume. It is worth of clinical promotion.
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