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首页> 外文期刊>Orthopaedic Journal of Sports Medicine >The Seasonal Variation of TKR Infection Rates
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The Seasonal Variation of TKR Infection Rates

机译：TKR感染率的季节性变化

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Introduction: A seasonal variation in the incidence of surgical site infections has been described following a number of common surgical procedures. However in the setting of elective Total Knee Replacement (TKR), the role of environmental factors is an area of research that is currently lacking from the literature. Data recently presented from our institution demonstrates a possible trend toward higher infection rates during periods of increased temperature and humidity. The aim of this study was to investigate if seasonal and geographical factors influence the rate of TKR infection within Australia. Methods: Data from the AOA National Joint Registry for all primary TKRs performed within the last 5 years was analysed to determine the revision rates for early (<12 months) post-operative infection. The infection rates for tropical regions (Darwin, Cairns, Townsville, Mackay) were compared to the remainder of the country. A month-by-month analysis was performed to determine if there was a seasonal variation within the 2 study groups. Results: During the study period a total of 207,540 primary TKRs were performed (6,514 tropical vs 201,026 non-tropical regions). Overall, the rate of revision for infection was significantly higher for the tropical regions of Australia (0.80% vs 0.39%). In non-tropical regions, there was no observed seasonal variation of infection rates. In tropical regions, there was a clear seasonal variation found, with the winter months being associated with a significantly lower rate of infection than the remainder of the year (0.37% vs 0.94%). The infection rates were not significantly different between tropical (0.37%) and non- tropical (0.38%) regions during the winter period. Conclusion: To the best of our knowledge, this is the first study to investigate and demonstrate a significant influence from seasonal variation on primary TKR infection rates. This phenomenon is evident only within tropical regions, with the periods of warmer and humid weather resulting in a significantly increased risk of primary TKR infection. These findings require further investigation and research.
机译：简介：已经按照许多常见的手术程序描述了手术部位感染发生率的季节性变化。但是，在选择全膝关节置换术（TKR）的情况下，环境因素的作用是目前文献中所缺乏的研究领域。我们机构最近提供的数据表明，在温度和湿度升高的时期，可能会出现更高的感染率趋势。这项研究的目的是调查季节性和地理因素是否会影响澳大利亚境内TKR感染率。方法：分析来自AOA国家联合注册中心的过去5年内进行的所有主要TKR的数据，以确定术后早期（<12个月）感染的修订率。将热带地区（达尔文，凯恩斯，汤斯维尔，麦凯）的感染率与该国其他地区进行了比较。逐月进行分析以确定两个研究组内是否存在季节性变化。结果：在研究期间，共进行了207,540次主要TKR（6,514个热带地区与201,026个非热带地区）。总体而言，澳大利亚热带地区的感染修订率明显更高（0.80％比0.39％）。在非热带地区，没有观察到感染率的季节性变化。在热带地区，发现明显的季节性变化，冬季月份的感染率明显低于一年中其余月份（0.37％对0.94％）。在冬季，热带地区（0.37％）和非热带地区（0.38％）之间的感染率没有显着差异。结论：就我们所知，这是第一项研究并证明季节性变化对原发性TKR感染率有重大影响的研究。这种现象仅在热带地区很明显，伴随着温暖和潮湿的天气导致原发性TKR感染的风险大大增加。这些发现需要进一步的调查研究。

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