Ultrasound Imaging for Pediatric Fracture Diagnosis

Ultrasound imaging has rapidly gained traction as a safe, radiation-free modality for detecting and monitoring fractures in children. Its real-time capability, portability and absence of ionising radiation make it particularly well suited to the paediatric population, where minimising exposure and distress is paramount. High-resolution B-mode imaging allows direct visualisation of cortical discontinuities, periosteal elevation and early callus formation, while Doppler techniques can assess vascular changes in evolving fracture sites. Standardised scanning protocols, typically involving multiplanar sweeps over the suspected injury site, have demonstrated reliability comparable to plain radiography for common injuries such as distal forearm and clavicular fractures. Point-of-care ultrasound (POCUS) enables frontline clinicians—after brief training—to make rapid triage decisions in emergency and outpatient settings, reducing wait times and unnecessary radiographs. Recent advances include three-dimensional acquisition, automated fracture detection via machine-learning algorithms and quantitative assessment of healing dynamics. Globally, ultrasound is being integrated into paediatric trauma pathways, particularly in low-resource environments, to improve diagnostic access and streamline care.

Research from Nature Portfolio

Recent studies have compared two-dimensional and three-dimensional ultrasound for paediatric wrist fractures and evaluated artificial intelligence (AI) against expert readers. In a large cohort of children with distal radius injuries, both 2D and 3D ultrasound scans achieved sensitivities and specificities approaching those of radiography when interpreted by trained clinicians. Notably, a deep-learning model matched human experts in detecting fracture lines on 3D acquisitions, suggesting that AI-assisted workflows could further reduce diagnostic variability and support less experienced operators. These findings underscore the potential for combining volumetric imaging with automated interpretation to enhance accuracy and efficiency in paediatric fracture diagnosis.

Ultrasound Imaging for Pediatric Fracture Diagnosis publication trend

The graph below shows the total number of articles in ultrasound imaging for pediatric fracture diagnosis across all publications each year (not limited to Nature Index journals).

Technical terms

Point-of-care ultrasound (POCUS): Bedside ultrasound performed by the treating clinician to make immediate diagnostic or management decisions.

Two-dimensional ultrasound (2DUS): Conventional planar imaging mode that displays a slice of tissue anatomy in real time.

Three-dimensional ultrasound (3DUS): Volumetric imaging mode that acquires multiple adjacent 2D slices to reconstruct a three-dimensional view of anatomical structures.

Sensitivity: The ability of a diagnostic test to correctly identify true positives, expressed as the proportion of actual fractures detected.

Specificity: The ability of a diagnostic test to correctly identify true negatives, expressed as the proportion of non-fractured cases ruled out.

References

1. 2D/3D ultrasound diagnosis of pediatric distal radius fractures by human readers vs artificial intelligence. Scientific Reports (2023).
2. Rational Usage of Fracture Imaging in Children and Adolescents. Diagnostics (2023).
3. Diagnosis of suspected pediatric distal forearm fractures with point-of-care-ultrasound (POCUS) by pediatric orthopedic surgeons after minimal training. BMC Medical Imaging (2024).
4. Ultrasound for Distal Forearm Fracture: A Systematic Review and Diagnostic Meta-Analysis. PLOS ONE (2016).