The CE angle of normal hips

Area of Science:

• Orthopedics
• Radiology
• Developmental Biology

Background:

• The Center-Edge (CE) angle of Wiberg is a key radiographic measurement for assessing hip joint morphology.
• Understanding normal CE angle development is essential for diagnosing hip abnormalities like hip dysplasia.

Purpose of the Study:

• To establish normative data for the Center-Edge (CE) angle in a healthy pediatric and adult population.
• To determine the developmental trajectory of the CE angle from childhood to adulthood.
• To identify potential age-specific thresholds for abnormal CE angle values.

Main Methods:

• Radiographic measurements of the Center-Edge (CE) angle were performed on normal hips.
• Patient age ranged from 8 to 75 years, with data stratified by sex.
• Statistical analysis included calculation of means and standard deviations for different age groups.

Main Results:

• The CE angle demonstrated a consistent increase with growth through childhood and adolescence, reaching adult values.
• The rate of increase slowed considerably after reaching adult age.
• In pediatric populations, CE angle values below 15 degrees were identified as potentially abnormal.

Conclusions:

• The study provides normative reference values for the CE angle across a wide age spectrum.
• The findings highlight the dynamic nature of hip joint morphology during development.
• A CE angle below 15 degrees in children warrants further investigation for potential hip abnormalities.