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Improving diagnostic efficiency: analysis of pelvic MRI versus emergency hip aspiration for suspected hip sepsis
Hilton P Gottschalk1, Molly A Moor, Abd R Muhamad
1*Department of Pediatric Orthopaedic Surgery, Rady Children's Hospital San Diego, San Diego, CA †Institut Ortopedik & Traumatologi, Hospital Kuala Lumpur, Kuala Lumpur, Malaysia.
Insights
Early advanced imaging for suspected childhood hip sepsis improves diagnosis and may reduce reoperation rates. This approach aids in timely and appropriate treatment for pediatric patients.
Area of Science:
- Pediatric Orthopedics
- Infectious Diseases
- Diagnostic Imaging
Background:
- Diagnosing and treating childhood hip sepsis is complex due to potential adjacent bone and soft-tissue infections.
- Delayed or incorrect treatment can result from these challenges.
- This study investigates the role of early advanced imaging in managing suspected hip sepsis.
Purpose of the Study:
- To evaluate the impact of early advanced imaging (bone scan, MRI) on the diagnosis and management of pediatric hip sepsis.
- To determine if advanced imaging reduces the need for reoperation in children with suspected hip sepsis.
Main Methods:
- Retrospective review of pediatric patients with suspected hip sepsis (2003-2009).
- Patients divided into two groups: immediate hip aspiration (Group I) versus advanced imaging before intervention (Group II).
- Comparison of clinical, laboratory, and treatment outcomes between the two groups.
Main Results:
- No significant differences in laboratory values, temperature, anesthetics, or hospital stay between groups.
- Group I patients were younger and more frequently unable to bear weight.
- Group I had a higher rate of septic hip diagnosis (68% vs. 45%) and reoperation (30% vs. 17%).
- Multivariate analysis showed reoperation was 2.8 times more likely in Group I.
Conclusions:
- Advanced imaging prior to hip aspiration enhances diagnostic accuracy for pediatric hip sepsis.
- Utilizing advanced imaging may decrease the necessity for repeat surgical interventions.
Background:
Accurately diagnosing and treating childhood hip sepsis is challenging. Adjacent bone and soft-tissue infections are common and can lead to delayed and inappropriate treatment. This study evaluated the effect of early advanced imaging (bone scan, magnetic resonance imaging) in the management of suspected hip sepsis.
Methods:
A retrospective review of pediatric patients admitted between 2003 and 2009 with suspected hip sepsis was performed. Patients were classified into 2 categories: group I-immediate hip aspiration or group II-advanced imaging performed before intervention.
Results:
In total, 130 patients (53 in group I and 77 in group II) were included. No significant differences were found between the groups with regard to laboratory values, temperature, number of anesthetics, and length of hospital stay. However, patients in group I were younger than in group II (5.4 vs. 7.3 y, P=0.02) and more patients in group I were unable to bear weight on the affected limb compared with group II (83% vs. 61%, P=0.009). In group I, 36 patients (68%) had a septic hip compared with 35 patients (45%) in group II. In group I, 16 patients (30%) required reoperation versus 13 (17%) patients in group II. Results from the multivariate analysis demonstrated that reoperation was required 2.8 times (95% confidence interval, 1.12-6.78) more often in group I as compared with group II (P=0.03).
Conclusions:
Advanced imaging performed before hip aspiration improves diagnostic efficacy and may decrease the need for reoperation.
Level Of Evidence:
III.
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