Medial Approach Open Reduction in Congenital Dislocation of the Hip

Medial approach open reduction (MAOR) for congenital dislocation of the hip, as is well known, is the most anatomically direct approach to the major obstacle to reduction. For the study on this method of open reduction, the authors reviewed 15 children who underwent MAOR and followed up to at least 1 year after operation with an average of 3 years and 2 months. The results were as follows: 1. The age distributions of the 15 children were; 1 child in below 12 months of age, 10 in 13 to 18 months, and 4 in 19 to 24 months. 2. The acetabular index was high before operation with an average of 32.7° (25-43). This improved makedly in the follow-up period to an average of 20.6° (13-29). 3. The average of acetabulum-head index was 70.6° and the average of CE angle was 19.7° in the follow-up. 4. The complications were 2 cases of avascular necrosis and 1 case of redislocation. No contracture of joint was observed. 5. For the residual dysplasia of acetabulum,innominate osteotomy of Salter was performed in 2 children and was scheduled in the other 5 children. 6. It can be stated that MAOR is a very safe, simple and effective method of open reduction.