在择期足踝手术中，微型 C 臂与标准透视比较的辐射剂量和筛查时间的研究。
A comparative study of radiation dose and screening time between mini C-arm and standard fluoroscopy in elective foot and ankle surgery.
机构信息
Worthing and Southlands Hospitals, UK.
出版信息
Foot Ankle Surg. 2011 Mar;17(1):33-6. doi: 10.1016/j.fas.2010.01.001. Epub 2010 Jan 25.
BACKGROUND
Mini C-arm devices have gained popularity in extremity surgery. There is little evidence of the benefits of this technique in the clinical setting of foot and ankle surgery. We used dose area product (DAP) to compare radiation usage between mini C-arm and standard fluoroscopy.
METHODS
We prospectively reviewed 127 cases requiring intra-operative screening during elective foot and ankle surgery.
RESULTS
Mini C-arm was used in 55 patients and standard fluoroscopy in 72 patients. There was a statistically significant reduction in mean DAP using the mini C-arm, 3.46 Gy cm² vs 7.43 Gy cm² (P=0.0013). There was no difference in screening time. The annual saving from using the mini C-arm could be £9391, saving the total cost of the device over 5 years.
CONCLUSION
The mini C-arm reduces radiation risk and costs when compared to standard fluoroscopy. We recommend its regular use in foot and ankle surgery.
背景
微型 C 臂设备在四肢手术中越来越受欢迎。在足踝外科的临床环境中，这种技术的益处证据很少。我们使用剂量面积产品（DAP）来比较微型 C 臂和标准透视的辐射使用情况。
方法
我们前瞻性地回顾了 127 例在择期足踝手术中需要术中筛查的病例。
结果
55 例患者使用微型 C 臂，72 例患者使用标准透视。使用微型 C 臂的平均 DAP 有统计学显著降低，3.46 Gy cm² 与 7.43 Gy cm²（P=0.0013）。筛查时间无差异。使用微型 C 臂每年可节省 9391 英镑，5 年内可节省设备总成本。
结论
与标准透视相比，微型 C 臂降低了辐射风险和成本。我们建议在足踝外科中常规使用微型 C 臂。
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