Abstract: Background: Center-edge angle of Wiberg has been used for a long time to assess femoral head coverage by the acetabulum.
However, only few studies have measured this angle in the Saudi population. Furthermore, there are very few studies conducted to study the influence of wither the tribe which an individual belongs to can affect the value of this angle.
Purpose: To establish a normal value of center-edge angle of the hip in adult Saudi resident of Albaha region, Saudi Arabia, and to determine whether certain variables such as age, gender, side of hip and tribe affect Center-edge angle.
Study design: Cross-Sectional study, Level 3 evidence.
Methodology: The center-edge angle of the acetabulum of 436 patients (872 hips) was measured. The association between the value of this angle and the patient’s age, gender, side of the hip, and the tribe was studied. The prevalence of acetabular dyspepsia based on this angle was also calculated.
Results: The mean center-edge angle was 38.96˚ (±5.89˚). There was a statistically significant relationship between age and the mean value of the center-edge angle. There was no statistically significant relationship between the value of center-edge angle and gender, side of the hip, or tribe of the patient.
Conclusion: The value of the center-edge angle in our study group was higher than what was reported by Wiberg and the previous studies. It was found that there is a proportional relationship between age and value of the center-edge angle. The prevalence of acetabular dysplasia in our study group was very low compared to previous studies.
