Background
Numerous pelvic osteotomies for the treatment of developmental dysplasia of the hip have been described.
Objective
To compare the outcome of two types of pelvic osteotomy, Salter and Dega, for the treatment of late-diagnosed developmental dysplasia of the hip.
Patients and methods
This prospective study included 32 patients (36 hips), 18 girls and 14 boys, mean age 2.3±0.5 years. Patients were randomized for management with Salter or Dega pelvic osteotomy after open reduction and capsulorrhaphy with or without femoral shortening osteotomy. The Salter osteotomy group included 19 hips and the Dega osteotomy group included 17 hips. The median follow-up period was 12 months (range 9–20 months).
Results
We achieved an overall success rate of 88.9% in the 36 hips, with no significant difference between the two techniques (89.5% in the Salter group and 88.2% in the Dega group, =1.000). Both techniques achieved comparable reduction of the acetabular index (20.3±9.0° in Salter vs. 22.0±8.9° in Dega group, =0.565). There was no significant difference in the center-edge angle between the two groups (34.8±13.0° in the Salter group and 37.4±12.1° in the Dega group, =0.554).
Conclusion
We achieved comparable results with Salter and Dega osteotomy. The latter has a further advantage of avoiding a second surgery required in the Salter technique to remove hardware.