This retrospective study of 117 patients (145 hips) with Crowe type-II congenital hip dysplasia examines how initial acetabular cup position in cemented THA affects long-term loosening and revision rates of both femoral and acetabular components over a mean 14-year follow-up.
When planning THA in a dysplastic hip, keep your acetabular cup within 15 mm of the anatomic femoral head center and target zone 1 (inferior and medial) — superior malposition alone, even without lateral shift, accelerates loosening of both components and will bring your patient back for revision.
This retrospective study of 117 patients (145 hips) with Crowe type-II congenital hip dysplasia examines how initial acetabular cup position in cemented THA affects long-term loosening and revision rates of both femoral and acetabular components over a mean 14-year follow-up.
When planning THA in a dysplastic hip, keep your acetabular cup within 15 mm of the anatomic femoral head center and target zone 1 (inferior and medial) — superior malposition alone, even without lateral shift, accelerates loosening of both components and will bring your patient back for revision.