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AIM: To research the influence of season of the year on periprosthetic joint infections. METHODS: 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. Acute postoperative infection rates were more frequent in the summer and were significantly affected by season of the year in the West. CONCLUSION: 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.
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Rosas et al. (2017) studied this question.
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