The First Clinical College of Zhejiang Traditional Chinese Medical University, Hangzhou, China.
The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou, China.
Medicine (Baltimore). 2023 Mar 10;102(10):e33089. doi: 10.1097/MD.0000000000033089.
To explore whether season is a risk factor of periprosthetic joint infection (PJI) after total joint arthroplasty (TJA) and explain it with the theory of traditional Chinese medicine. This was a retrospective cohort study. Only patients who suffered from PJI within 1 month after TJA were included in the study. Occurrence of PJI was the outcome of this study. Chi-squared test and t test was used to assess differences for baseline characteristics. Chi-square test was used to analyze whether season was related to the occurrence of PJI. Logistic regression was used to evaluate the association between season and occurrence of PJI. The incidence of PJI in summer is significantly higher than that in winter, whether after total knee arthroplasty (Chi-square value = 6.455, P = .011) or total hip arthroplasty (Chi-square value = 6.141, P = .013). Summer was an independent risk factor for PJI (OR = 4.373, 95% confidence interval = 1.899-10.673, P = .004). To be more exact, compared to nonlate summer (19.51%), and PJI is mainly concentrated in late summer (80.49%). Late summer was an independent risk factor of PJI after TJA. The infection rate of PJI after TJA in late summer is higher than other seasons. A more thorough preoperative disinfection procedure is needed in late summer.
探讨季节是否是全膝关节置换术（TJA）后假体周围关节感染（PJI）的危险因素，并从中医理论角度进行解释。这是一项回顾性队列研究。仅纳入 TJA 后 1 个月内发生 PJI 的患者。本研究的结局为 PJI 的发生。采用卡方检验和 t 检验评估基线特征的差异。采用卡方检验分析季节与 PJI 发生是否相关。采用 logistic 回归评估季节与 PJI 发生的相关性。夏季 PJI 的发生率明显高于冬季，无论是全膝关节置换术（卡方值=6.455，P=.011）还是全髋关节置换术（卡方值=6.141，P=.013）。夏季是 PJI 的独立危险因素（OR=4.373，95%置信区间=1.899-10.673，P=.004）。更确切地说，与非夏末（19.51%）相比，PJI 主要集中在夏末（80.49%）。夏末是 TJA 后 PJI 的独立危险因素。TJA 后夏末 PJI 的感染率高于其他季节。在夏末需要更彻底的术前消毒程序。
