Osteoarthritis Research Today is a free monthly online journal that collates and summarizes the latest research about Osteoarthritis, including details on treatment, symptoms, causes, medication.

Three-dimensional anatomy of the hip in osteoarthritis after developmental dysplasia.

Argenson JN, Ryembault E, Flecher X, Brassart N, Parratte S, Aubaniac JM

Aix-Marseille University, Marseille, France.

Using radiography and computer tomography (CT) we studied the morphology of 83 hips in 69 Caucasian adults with osteoarthritis secondary to developmental dysplasia of the hip (DDH). A previously published series of 310 hips with primary osteoarthritis was used as a control group. According to the Crowe classification, 33 of the dysplastic hips were graded as class I, 27 as class II and 23 as class III or class IV. The intramedullary femoral canal had reduced mediolateral and anteroposterior dimensions in all groups compared with the control group. Only in Crowe class II hips was the femoral neck-shaft angle increased. The proximal femur had more anteversion in all the developmental dysplasia of the hip groups, ranging from 2 degrees to 80 degrees. Templated measurement of acetabular dimensions for plain radiography closely matched measurements taken by CT. The results of our study confirm the observations previously confined to the Japanese population.

Published 30 August 2005 in J Bone Joint Surg Br, 87(9): 1192-6.
Full-text of this article is available online (may require subscription).

© 2004-2008 Osteoarthritis Research Today. All Rights Reserved.