It occurs when the Acetabulum is shallow as a result of failure to develop properly in utero These structures become taut during extension to limit further movement.Ĭlinical Relevance: Dislocation of the Hip Joint Congenital DislocationĬongenital hip dislocation occurs as a result of developmental dysplasia of the hip (DDH). The degree to which flexion at the hip can occur depends on whether the knee is flexed – this relaxes the hamstring muscles, and increases the range of flexion.Įxtension at the hip joint is limited by the joint capsule and the iliofemoral ligament.
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