Minimally invasive periacetabular osteotomy for adult hip dysplasia

Objective Performance of a periacetabular osteotomy (PAO) using a minimally invasive approach for three-dimensional correction of the acetabular position. Indications Symptomatic developmental dysplasia of the hip in adolescents and adults. Contraindications Advanced osteoarthritis of the hip, incongruence of the hip joint surfaces. Surgical technique A periacetabular osteotomy is performed via a minimally invasive approach. Results In total, 39 patients were followed up for 3.5 (3-4.5) years. The lateral center-edge angle of Wiberg increased significantly from 16.1 degrees (7-24 degrees) to 30.5 degrees (25-37 degrees) (p < 0.0001), the acetabular index changed from 13.2 degrees (2-25.3 degrees) to 2.8 degrees (-3-13 degrees; p < 0.0001). Mean duration of surgery was 88 (57-142) minutes. No major complications occurred.