A video abstract is available with the new study by Verhaegen et al. in JBJS:
In this study, researchers assessed acetabular sector angles (ASAs) on CT scans at different axial levels. Measurements were compared between control patients with asymptomatic, high-functioning hips and patients with symptomatic, dysplastic hips who had undergone periacetabular osteotomy. ASA thresholds for hip dysplasia were determined.
As concluded by the authors, “Measurement of ASA is a reliable tool to identify focal acetabular deficiency with high accuracy, aiding diagnosis and management.”