In more severe cases of acetabulum, the femoral head may not "fit" into the cavity. Normally all cases of dysplasia are diagnosed and treated in the first months of life but, in exceptional situations, can be identified much later. In “dislocated” hips there is no actual joint.
The head of the femur articulates with soft tissues on the outer region of the hipbone (fig. 1).
The treatment of this severe deformity, when symptomatic, may imply the placement of prosthesis (see section "Prosthetic reconstructive surgery"). In dislocated hips, this type of surgery has increased technical difficulty associated with low bone mass, with the difference in limb length and the need to prevent the onset of nerve damage of lower limb due to surgery.
|fig. 1: Hip dysplasia development and high dislocation in a patient with 50 years old|
|fig 2: After reconstructive surgery with prosthesis placement, trochanter distalization and bone graft to increase the depth of the acetabular ceiling|
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