患者均有严重的小下颌畸形并伴轻度的上颌后缩畸形，睡眠呼吸暂停指数AI＞5，且睡眠时血氧饱和度都有不同程度的降低。
All patients have severe retrognathia with slight maxillary retrognathia, and their apnea index (AI) was higher than 5 as well as with oxygen hyposaturation during sleep.
目的：提高双侧下颌角肥大伴有小颏畸形的手术治疗效果。
The small chin deformity was a commen developmental deformity of the jaw.
目的：提高双侧下颌角肥大伴有小颏畸形的手术治疗效果。
The small chin deformity was a commen developmental deformity of the jaw.
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