Objective:to observe the effect of bavarian dressing splint and paper circle external fixation to treating endoduction type surgical neck of humerus.

目的：观察石膏夹板配合纸圈外固定治疗内收型肱骨外科颈骨折的疗效。

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Hence, the wound dressing and micropump system is portable which allows the patient mobility that is unavailable when an external vacuum source is used.

因此，伤口敷料和微型泵系统为便携式的，这使得病人可活动，这在使用外部真空源时不能实现。

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