Periacetabular Ganz osteotomy in the treatment of developmental dysplasia of the hip in adolescents and adults: Surgical technique and early results.

Background. Periacetabular osteotomy does not change the diameter of the true pelvis, but allows for extensive acetabular reorientation, including medial and lateral displacement. Because the posterior pillar remains mechanically intact, the acetabular fragment can be stabilized sufficiently using only 3 screws. This stability allows the patient to stand up and walk early after surgery without loading the operated hip. This article presents for the first time in Polish literature the technique and preliminary results of the periacetabular osteotomy described by Ganz et al. for the treatment of hip dysplasia in adolescents and adults. Material and methods. From 1998 to 2003 the author operated 64 hips in 58 patient using periacetabular osteotomy. Results. The correction of the Wiberg angle ranged from 12 degrees to 55 degrees (ave. 29 degrees ). Complications included urinary tract infections, ectopic bone formation, and early post-op infection of soft tissue. There was no evidence of bleeding or vascular complication, or of injury to either the sciatic or femoral nerves. Conclusions. The periacetabular osteotomy presented here can be used, with careful planning and execution, to obtain more satisfactory and more anatomical correction of hip dysplasias.