Material and Method: We retrospectively reviewed the record files and radiographs of 22 dislocated hips of 20 patients managed with simultaneous open reduction and Salter osteotomy at Hospital and Rehabilitation Centre for Disabled Children from 1999 to 2001. Only eight patients with 9 hips with purely developmental dysplasia of hip aged one to seven years were included. The acetabular index on the initial and final radiographs was measured. The neck shaft angle was also measured. All radiographs were evaluated to determine the presence of avascular necrosis of the femoral head and position of the head after the operation. Clinical results were determined using modification of the McKay criteria ( Pain, ROM, LLD, Containtment and Gait) . Follow–up ranged from a minimum of 1 year to a maximum of 5 years (average 3 years and 1 month).

Results: The results were excellent in 7 hips (77.77%) good in 1 hip (11.11%) and poor in 1 hip (11.11%) according to modified McKay criteria.. No complications related to infection, graft fracture, vascular or neural injury were encountered.

Conclusion: When case selection for surgical treatment is appropriate, a reasonable excellent to good result can be expected even in cases such as ours which present late.