Anteversion of the acetabulum in developmental dysplasia of the hip: Analysis with computed tomography

Acetabular anteversion was measured by using two-dimensional (2-D) computed tomography,(CT) scans in 39 dysplastic and 27 normal hips (patient age ran ge, 3-33 years), and averaged 19.7 degrees in the dysplastic hips and 18.1 degrees in the normal hips. There was no statistically significant differen ce between the two groups, with a wide range of acetabular anteversion valu es noted in both groups (8-32 degrees). Although acetabular anteversion may be increased in some patients with developmental dysplasia of the hip (DDH ), it is not a universal finding. We believe that assessment and understand ing of acetabular anteversion is needed before performing corrective osteot omies for hip dysplasia to optimize results and avoid the complications of acetabular retroversion.