S2k-Guideline Developmental Dysplasia of the Hip in the Neonate
Abstract
Hip developmental disorders are the most common musculoskeletal disease in newborns in Central Europe. The definition of hip developmental disorder includes both dysplastic and dislocated joints. In a dysplastic joint, shearing forces induce a growing disorder in the acetabulum. If this growing disorder persists, the femoral head first displaces the acetabular cartilage cranially and finally the femoral head dislocates posteriorly into the gluteal fossa - progressively losing contact to the acetabulum. Therefore nowadays there is general support for the concept of a developmental instead of a congenital dislocation of the hip. From the first day of life, the different stages of hip developmental disorder be exactly classified by an ultrasound examination of the infant hip joint according to Graf. Therefore the Graf hip ultrasound examination has been an integral part of the paediatric guidelines in Germany since 1996. All newborns must receive Graf hip ultrasound screening examination, ideally at the age of 4-5 (maximal 8) weeks as part of the U3 screening examination. Newborns with historical or clinical risk factors must receive an ultrasound examination in the first week of life, additionally to the clinical examination of the hip joints of all newborns according to the second screening examination U2. In the case of pathological results, therapy should be initiated according to measured hip type within one week. Dislocated joints need reduction and as soon as the contact…
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