4.4 Article

Hip Joint Infections Caused by Multidrug-Resistant Enterobacterales Among Patients With Spinal Cord Injury: Experience of a Reference Center in the Greater Paris Area

Journal

OPEN FORUM INFECTIOUS DISEASES
Volume 9, Issue 6, Pages -

Publisher

OXFORD UNIV PRESS INC
DOI: 10.1093/ofid/ofac209

Keywords

bone; carbapenemase; ESBL; infection; spinal cord

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Hip joint infections among spinal cord injury patients caused by multidrug-resistant Enterobacterales are often polymicrobial and fluoroquinolones-resistant, commonly caused by Klebsiella pneumoniae and Staphylococcus aureus. Treatment usually involves carbapenems and combination therapies, with most cases benefiting from femoral head and neck resection to control infection.
Background We aimed to describe the management and treatment of hip joint infections caused by multidrug-resistant Enterobacterales among patients with spinal cord injury (SCI). Methods We included all hip joint infections associated with grade IV decubitus ulcers caused by extended-spectrum beta-lactamase producing Enterobacterales (ESBL-PE) and carbapenemase-producing Enterobacterales treated in a reference center for bone and joint infections over 9 years in a retrospective study. Results Seventeen SCI patients with ischial pressure ulcers breaching the hip capsule (mean age 52 +/- 15 years) were analyzed. In 16 patients, paraplegia was secondary to trauma and 1 was secondary to multiple sclerosis. Infections were mostly polymicrobial (n = 15; 88.2%), notably caused by Klebsiella pneumoniae (n = 10) and Staphylococcus aureus (n = 10). The carbapenemases identified were exclusively OXA-48-type (n = 3) including 2 isolates coexpressed with ESBL-PE within the same bacterial host. Multidrug-resistant Enterobacterales were commonly resistant to fluoroquinolones (n = 12; 70.6%). Most therapies were based on carbapenems (n = 10) and combination therapies (n = 13). Median duration of treatment was 45 (6-60) days. Of 17 cases of hip joint infections, 94.1% (n = 16) benefited from a femoral head and neck resection. Infection control was initially achieved in 58.8% (n = 10) of cases and up to 88.2% after revision surgeries, after a median follow-up of 3 (1-36) months. Conclusions Hip infections among SCI patients caused by multidrug-resistant Enterobacterales are often polymicrobial and fluoroquinolones-resistant infections caused by Klebsiella pneumoniae and S aureus, highlighting the need for expert centers with pluridisciplinary meetings associating experienced surgeons, clinical microbiologists, and infectious disease specialists.

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