Combined open reduction and Dega transiliac osteotomy for developmental dysplasia of the hip in walking children.

The iliac osteotomy described by Dega in Poland, in 1969, is an acetabuloplasty that changes the acetabular configuration and its inclination. The aim of this work is to analyze a group of patients with DDH treated by combined open reduction and Dega transiliac osteotomy ,to evaluate the results and determine the advantages and disadvantages, as well as, assess the factors affecting the final outcome of such procedure. A prospective study was conducted during the period, from November 2010 to October 2014, on 39 hips, in 29 children, with neglected DDH after walking age, either diagnosed late or after failure to respond to previous non operative treatment. The mean age at the time of surgery was 27.6 months ranging from 18 to 48 months. All hips were followed up clinically and radiologically for a mean period of 33.6 months (range from 18 to 48 months). No patient was lost to follow up. At the end of follow up, satisfactory final clinical results were obtained in 34 hips (87.2%) and unsatisfactory in 5 (12.8%) according to McKay's criteria. Radiologically, satisfactory results were obtained in 32 hips (82.1%) and unsatisfactory in seven (17.9%), according to Severin's criteria. In conclusion, the results of our series show open reduction combined with Dega transiliac osteotomy to be a safe and efficient method for the surgical treatment of DDH in selected patients, and can easily and safely be combined with associated procedures for single stage correction of acetabular dysplasia.