Ultrasonography in hip disease in children

Area of Science:

• Pediatric Orthopedics
• Diagnostic Imaging
• Rheumatology

Background:

• Intra-articular synovial effusion is a common finding in various pediatric hip conditions.
• Accurate diagnosis and assessment of effusion are crucial for effective management of juvenile hip diseases.

Purpose of the Study:

• To evaluate the diagnostic value of ultrasonography in visualizing and quantifying synovial effusion in pediatric hip diseases.
• To correlate ultrasonographic findings with clinical severity and other disease parameters.

Main Methods:

• Ultrasonography was used to examine 166 hips in 149 children with different juvenile hip diseases.
• Joint aspiration was performed in 97 hips to confirm effusion and compare diagnostic accuracy with radiography.
• Ultrasonic joint space measurements were correlated with clinical severity, synovial fluid volume, and intra-articular pressure.

Main Results:

• Ultrasonography demonstrated higher sensitivity than conventional radiography in diagnosing hip effusion.
• A significant correlation was observed between the magnitude of ultrasonic joint space widening and clinical disease severity, fluid volume, and intra-articular pressure.
• Distinct patterns of joint space widening were noted in conditions like transient synovitis, septic arthritis, reactive arthritis, and urticarial arthritis, differentiating them from Perthes disease and nonspecific arthralgia.

Conclusions:

• Ultrasonography is a valuable and sensitive tool for diagnosing and monitoring synovial effusion in the pediatric hip.
• The technique provides objective measurements that correlate with disease activity and severity, aiding in clinical decision-making.
• Ultrasonography facilitates the differentiation of various causes of hip effusion in children.