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New Education and Heritage Centre Proposal
[ 30 August 2013 ]

Indian Orthopaedic Association 57th Annual Conference 2012
[ 16 January 2013 ]

International Revision Hip Arthroplasty Symposium November 2012
[ 30 November 2012 ]

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[ 30 August 2013 ]

Tim Board
[ 30 August 2013 ]

Which factors determine the wear rate of large-diameter metal-on-metal hip replacements? Multivariate analysis of two hundred and seventy-six components.
[ 12 July 2013 ]

Medical management of osteonecrosis of the hip: a review
[ 12 July 2013 ]

Dysplastic hips and CDH

The word 'congenital' refers to abnormalities occurring during foetal growth and therefore imply failure of the body to develop properly. The most common example in relation to the hip is congenital dislocation of the hip (CDH), when a baby is born with a dislocated hip joint.

A less severe form of the same process is referred to as developmental dysplasia of the hip (DDH). The hip joint fails to develop fully so that the acetabulum is shallow and the femoral head is not fully contained in the hip.

Often in patients with dysplasia the hip can be completely without any symptoms (asymptomatic) until the onset of symptoms in early adulthood (20s and 30s). The acetabular roof is more vertical and the femoral head lies in a more lateral position (reduced centre edge angle). High stresses on the lateral acetabular margin cause wear of the articular cartilage.

Patients with dysplasia who have not yet developed osteoarthritis but do have symptoms from their hip are sometimes offered surgery to correct the alignment of the acetabulum.

link to case example of total hip replacement for dysplasia



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