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.

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小囊可以逐步增大并且随时间扩展直到表现为一个声门旁或下颌下肿块。

The saccule enlarges and expands gradually over time until it presents as a paralaryngeal or submandibular mass.

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结论：在下颌骨单纯线性骨折治疗中，PDLLA小夹板螺钉是一种可选择的骨折内固定材料，优点是不需要二次手术取出。

CONCLUSION: Bioabsorbable PDLLA plates and screws can be selectively used for internal fixation in single linear mandibular fractures, with the advantage that they do not need to be removed.

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