A 23-year-old female with a symptomatic acetabular retroversion on the right side. Radiological criteria: Lateral center edge angle (LCEA): 25.1°, Acetabular index: 12.1°, Extrusion index: 22.7%, Anterior wall coverage: 31.6%, Posterior wall coverage: 29.2%, Sharp angle: 39.7°. It is to be underlined that the problem is not a potential anterior conflict only, but posterolateral dysplasia. Dashed white line: Anterior wall; White line: Posterior wall.