[Long-term results of acetabuloplasty].

The results of a modified acetabuloplasty after Albee-Lance performed simultaneously with a derotation-varusosteotomy (DVO) are investigated after cessation of growth. Measurements of the acetabulum have been normal or slightly pathologic after our classification system in 82-93%, while the values of the femoral head and neck showed a higher pathologic percentage. This is due to avascular necrosis after conservative or operative treatment, insufficient open reductions in a smaller number, but in the most cases caused by increased revalgisation after DVO. We have therefore performed acetabuloplasty since several years without DVO in the most cases, so far with good results.