5.0毫米阿斯尼斯III型空心螺钉失效：一例病例报告。
Failure of asnis iii 5.0 mm cannulated screw: a case report.
作者信息
Chen A, Willis-Owen C, Akhtar K, Kamineni S
机构信息
Department of Trauma and Orthopaedics, Charing Cross Hospital, Fulham Palace Road, London, UK.
出版信息
Cases J. 2010 Jan 7;3:9. doi: 10.1186/1757-1626-3-9.
We describe a case of an ASNIS III 5.0 mm partially threaded cannulated screw unthreading itself as it was being inserted during fracture fixation of a humerus. The majority of complications associated with cannulated screws involve breaking of the screw, as opposed to unthreading. We believe that the self tapping design of the screw, in combination with the cannulated design, creates a potential area of weakness when used on hard bone.
我们描述了一例在肱骨骨折固定过程中，一枚5.0毫米的ASNIS III型部分螺纹空心钉在插入时自行脱扣的病例。与空心钉相关的大多数并发症是螺钉断裂，而非脱扣。我们认为，这种螺钉的自攻设计与空心设计相结合，在用于坚硬骨骼时会产生一个潜在的薄弱区域。
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