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J. Wong-Chung, FRCS I, Orthopaedic Registrar

By John Wong-chung, Michael Ryan and Timothy M. O’brien


A Salter innominate osteotomy is used to treat acetabular dysplasia, but reports of its effects on the position of the femoral head are few and confficting. Lateral shift would increase the resultant forces acting on thejoint and be detrimental. We studied 15 Salter innominate osteotomies and demonstrated that a correctly performed osteotomy does not significantly alter the distance from the centre of the femoral head to the midline of the body. Stereophotogrammetry was used in three patients to delineate the axis of rotation of the distal acetabular fragment and determine the locus of movement of the centre of the femoral head about it. Our results explain why the Salter osteotomy does not lateralise the femoral head

Year: 2016
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