Clinical characteristics and causative pathogens of infective arthritis and risk factors for gram-negative bacterial infections

Yongseop Lee, Yun Suk Cho, Yu Jin Sohn, Jong Hoon Hyun, Sang Min Ahn, Woon Ji Lee, Jung Ho Kim, Hye Seong, Junhyoung Kim, Su Jin Jeong, Nam Su Ku, Joon Sup Yeom, Jin Young Ahn, Jun Yong Choi

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2 Citations (Scopus)


Background: The aim of this study was to describe the clinical and microbiological characteristics of infective arthritis and to analyze risk factors for Gram-negative bacterial infections that cause infective arthritis. Materials and Methods: Patients admitted between 2009 - 2018 with infective arthritis in a single-tertiary hospital were evaluated retrospectively. Results: A total of 181 patients were enrolled in this study. Of them, 135 were native joint infection patients and 46 were prosthetic joint infection patients. The most common site of infective arthritis was the knee (63.6%), followed by the shoulder (17.7%), and the hip (9.9%). The most frequently identified microorganisms were Staphylococcus aureus (51.1%), followed by Streptococci sp. (21.1%), Enterobacteriaceae (8.4%), and coagulase-negative-Staphylococci (CNS; 8.4%). Infections due to Gram-negative bacteria and fungi made up 13.7% and 3.2% of all cases, respectively. Additionally, 20% and 4.2% of the cases involved methicillin-resistant S. aureus (MRSA) and MRCNS. We found that bacteriuria, infective arthritis in the hip, and steroid use at admission are independent risk factors for Gram-negative bacterial infections. Conclusion: Infective arthritis with methicillin-resistant microorganisms reached up to about 25% in a single-tertiary hospital in Korea. In case of suspected urinary tract infection, infective arthritis of the hip joint, or steroid use at admission time among infective arthritis patients, empirical treatment covering Gram-negative microorganisms can be considered.

Original languageEnglish
Pages (from-to)503-515
Number of pages13
JournalInfection and Chemotherapy
Issue number4
Publication statusPublished - 2020 Dec

Bibliographical note

Funding Information:
This work was supported by research grants for deriving the major clinical and epidemiological indicators of people with HIV (Korea HIV/AIDS Cohort Study, 2019-ER5101-00), and a grant from the Ministry of Health & Welfare, Korea (grant number: HI14C1324).

Publisher Copyright:
© 2020 by The Korean Society.

All Science Journal Classification (ASJC) codes

  • Infectious Diseases
  • Pharmacology (medical)


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