A Study of Chiari's Medial Displacement Osteotomy

Abstract

In our clinic, we have performed Chiari's medial displacement osteotomy for 32 cases of pre and early osteoarthrosis with dysplastic acetabulum since 1977.After the osteotomy, CE angle improved to 31.6 degrees and Sharp angle to 12. 1 degrees in average with the achievement of a good coverage of the femoral head.We observed the medialization of the femoral in all cases and the decrease of the loading forces to the femoral head in almost cases.