Rosas Samuel, Ong Alvin C, Buller Leonard T, Sabeh Karim G, Law Tsun Yee, Roche Martin W, Hernandez Victor H
Department of Orthopedic Surgery, Wake Forest School of Medicine, Winston-Salem, NC 27101, United States.
Orthopedic Surgery, Thomas Jefferson University Hospital, Egg Harbor Town, NJ 08234, United States.
World J Orthop. 2017 Dec 18;8(12):895-901. doi: 10.5312/wjo.v8.i12.895.
To research the influence of season of the year on periprosthetic joint infections.
We conducted a retrospective review of the entire Medicare files from 2005 to 2014. Seasons were classified as spring, summer, fall or winter. Regional variations were accounted for by dividing patients into four geographic regions as per the United States Census Bureau (Northeast, Midwest, West and South). Acute postoperative infection and deep periprosthetic infections within 90 d after surgery were tracked.
In all regions, winter had the highest incidence of periprosthetic infections (mean 0.98%, SD 0.1%) and was significantly higher than other seasons in the Midwest, South and West ( < 0.05 for all) but not the Northeast ( = 0.358). Acute postoperative infection rates were more frequent in the summer and were significantly affected by season of the year in the West.
Season of the year is a risk factor for periprosthetic joint infection following total hip arthroplasty (THA). Understanding the influence of season on outcomes following THA is essential when risk-stratifying patients to optimize outcomes and reduce episode of care costs.
研究一年中的季节对人工关节周围感染的影响。
我们对2005年至2014年整个医疗保险档案进行了回顾性研究。季节分为春、夏、秋、冬。根据美国人口普查局将患者分为四个地理区域（东北、中西部、西部和南部）来考虑区域差异。追踪术后急性感染和术后90天内的人工关节深部感染情况。
在所有区域中，冬季人工关节周围感染的发生率最高（平均0.98%，标准差0.1%），在中西部、南部和西部显著高于其他季节（所有P<0.05），但在东北部并非如此（P=0.358）。术后急性感染率在夏季更为频繁，并且在西部受一年中季节的显著影响。
一年中的季节是全髋关节置换术（THA）后人工关节周围感染的一个危险因素。在对患者进行风险分层以优化结果并降低护理费用时，了解季节对THA术后结果的影响至关重要。
