TRIPLE OSTEOTOMY OF THE PELVIS FOR ACETABULAR DYSPLASIA - RESULTS AT 8 TO 15 YEARS

Reorientation of the acetabulum may be required in adolescents and you ng adults with developmental dysplasia of the hip. We have carried out a retrospective review of 51 hips after triple osteotomy with an aver age follow-up of ten years (8 to 15). Forty-eight hips (94%) were avai lable for review and of these 39 (81%) were improved compared with bef ore operation, 29 (60%) scoring good or excellent. Radiographic assess ment showed improvement of the average centre-edge angle by 19 degrees , the acetabular index by 12 degrees and the anterior centre-edge angl e by 26 degrees. The degree of osteoarthritis progressed by one grade in ten hips (21%) over a period of ten years. The satisfactory long-te rm clinical and radiographic results have encouraged us to continue th is treatment for symptomatic acetabular dysplasia in these patients.