Related Experiment Video
Updated: Jun 14, 2025
Minimally Invasive Treatment for Thoracolumbar Burst Fracture Using Sagittal Alignment Screws and A Trauma Reduction Device
Published on: November 8, 2024
A new method for evaluating radial neck fractures based on Judet classification
Yi C Wang1, Jiao J Song2, Ting T Li3
1Department of Orthopedics, Shanghai Children's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
Insights
Angle U on anteroposterior (AP) radiographs is a reliable method for measuring pediatric radial neck fractures, offering improved accuracy for treatment planning in children.
Area of Science:
- Pediatric Orthopedics
- Radiology
- Pediatric Trauma
Background:
- Radial neck fractures are common in children.
- Accurate angulation measurement is crucial for treatment planning.
- Current methods may lack precision, especially in younger children.
Purpose of the Study:
- To propose and evaluate a novel method for assessing pediatric radial neck fractures.
- To enhance the accuracy of fracture angulation measurement in children.
- To improve treatment planning for pediatric radial neck fractures.
Main Methods:
- Retrospective analysis of 50 pediatric radial neck fracture cases.
- Comparison of radiographic measurements (Angles P, S, U) with CT scans (CTa).
- Assessment of inter- and intraobserver reliability using Kappa statistics and ICC.
Main Results:
- Angle U demonstrated the strongest correlation with CT-measured angulation (CTa).
- Angles S and U showed higher inter- and intraobserver reliability compared to Angle P.
- Excellent intraclass correlation coefficient (ICC) values were observed for all measured angles.
Conclusions:
- Angle U on AP radiographs is a suitable substitute for CTa in evaluating pediatric radial neck fractures.
- This method offers improved accuracy for fracture angulation measurement in children.
- Further validation studies are recommended for this proposed method.
Aims:
To propose a new method for evaluating paediatric radial neck fractures and improve the accuracy of fracture angulation measurement, particularly in younger children, and thereby facilitate planning treatment in this population.
Methods:
Clinical data of 117 children with radial neck fractures in our hospital from August 2014 to March 2023 were collected. A total of 50 children (26 males, 24 females, mean age 7.6 years (2 to 13)) met the inclusion criteria and were analyzed. Cases were excluded for the following reasons: Judet grade I and Judet grade IVb (> 85° angulation) classification; poor radiograph image quality; incomplete clinical information; sagittal plane angulation; severe displacement of the ulna fracture; and Monteggia fractures. For each patient, standard elbow anteroposterior (AP) view radiographs and corresponding CT images were acquired. On radiographs, Angle P (complementary to the angle between the long axis of the radial head and the line perpendicular to the physis), Angle S (complementary to the angle between the long axis of the radial head and the midline through the proximal radial shaft), and Angle U (between the long axis of the radial head and the straight line from the distal tip of the capitellum to the coronoid process) were identified as candidates approximating the true coronal plane angulation of radial neck fractures. On the coronal plane of the CT scan, the angulation of radial neck fractures (CTa) was measured and served as the reference standard for measurement. Inter- and intraobserver reliabilities were assessed by Kappa statistics and intraclass correlation coefficient (ICC).
Results:
Angle U showed the strongest correlation with CTa (p < 0.001). In the analysis of inter- and intraobserver reliability, Kappa values were significantly higher for Angles S and U compared with Angle P. ICC values were excellent among the three groups.
Conclusion:
Angle U on AP view was the best substitute for CTa when evaluating radial neck fractures in children. Further studies are required to validate this method.
More Related Videos
07:35Creating Rigidly Stabilized Fractures for Assessing Intramembranous Ossification, Distraction Osteogenesis, or Healing of Critical Sized Defects
Published on: April 11, 2012
09:34A Method to Estimate Cadaveric Femur Cortical Strains During Fracture Testing Using Digital Image Correlation
Published on: September 14, 2017
Related Concept Videos
01:11Assessment of radial pulse
The radial pulse, located at the wrist, is often the preferred site for assessing peripheral pulse because of its accessibility and dependability. The process of determining the radial pulse involves several steps:
01:25Assessment of apical radial pulse
The A-R pulse assessment involves simultaneous evaluation of the apical and radial pulses. When the apical and radial pulse rates vary, this assessment helps identify a pulse deficit.
Pre-Procedural Preparation