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Treatment of septic arthritis of the hip in children
Cindy Mallet1, Brice Ilharreborde1, Marion Caseris1
1Hôpital Universitaire Robert Debré, 48 boulevard Sérurier, 75019 Paris, France.
Insights
Septic arthritis of the hip (SAH) in children requires prompt diagnosis and treatment to prevent severe joint damage. Early intervention significantly improves functional outcomes for pediatric patients.
Area of Science:
- Pediatric Orthopedics
- Pediatric Infectious Diseases
- Pediatric Rheumatology
Background:
- Septic arthritis of the hip (SAH) is a critical pediatric condition, primarily affecting children under two years old.
- Staphylococcus aureus (S. aureus) is a common pathogen across all age groups, while Kingella kingae (Kk) is prevalent in children aged 6 months to 4 years.
- Diagnosis relies on clinical signs, lab tests, and imaging (sonography), with MRI aiding in detecting complications.
Purpose of the Study:
- To review the diagnosis, treatment, and prognosis of septic arthritis of the hip in children.
- To highlight the importance of early detection and intervention for optimal functional outcomes.
Main Methods:
- Review of clinical presentations, diagnostic criteria, and microbiological findings.
- Discussion of current treatment strategies including joint drainage, surgical lavage, and antibiotic therapy.
- Emphasis on the role of advanced diagnostic tools like PCR and MRI.
Main Results:
- Clinical presentation varies widely, from subtle limping to septic shock.
- Microbiological diagnosis is confirmed by joint aspiration; PCR enhances Kk detection.
- Effective treatment involves prompt surgical intervention and appropriate antibiotic therapy.
Conclusions:
- Timely diagnosis and treatment of pediatric hip SAH are crucial for preventing long-term sequelae such as growth disturbances and joint damage.
- The functional prognosis is directly linked to the speed of diagnosis and initiation of treatment.
- SAH management requires a multidisciplinary approach involving prompt surgical drainage and targeted antibiotic therapy.
Abstract:
Septic arthritis of the hip (SAH) in children is a common pediatric ailment that must be diagnosed immediately as proper treatment is needed to ensure good outcomes. It mostly affects children less than 2 years of age. The causative bacteria depend on age. The most widespread pathogen found at all ages is Staphylococcus aureus (S. aureus), while Kingella kingae (Kk) is most common in children 6 months to 4 years of age. SAH is suspected based on a wide set of clinical, laboratory and radiological (sonography) criteria. MRI is especially useful for diagnosing complications when the child's condition worsens. The diagnosis is only confirmed when joint aspiration finds evidence of bacteria being present. Targeted PCR techniques have largely improved the microbiological diagnosis of Kk. The clinical presentation varies greatly from a limp to prevent weightbearing on the affected leg in a small child with or without fever and very mild to non-existent systemic inflammation, suggestive of SAH due to Kk, to septic shock with quasi-paralysis of the lower limb. Treatment mainly consists of joint drainage and surgical lavage, open or arthroscopic, combined with empirical antibiotic therapy against the likely cause of the infection. A short course of antibiotics is widely used in uncomplicated cases of SAH. The functional prognosis depends highly on the time elapsed before the diagnosis and the start of treatment. Functional sequelae can be severe (growth disturbances, long-term joint damage). LEVEL OF EVIDENCE: Expert opinion.
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