Hip dysplasia is a coverage defect of the joint, the acetabulum is not covering the head of the femur in the right way, this defect produces articular hip pain or stress during prolonged walking, symptoms can appear without any trauma, or after pregnancy, and is seen in young people generally.
Dysplasia according to the degree of importance can be objectified at birth by which can be diagnosed by a neonatologist through an ultrasound examination.
Sometimes there is no evidence until adulthood. Physical examination has a nearly normal joint with very good joint movements. Plain radiographs will allow the measurement of certain values that support the diagnosis.
Figure 10 shows more clearly the defect. To the left hip dysplasia, the yellow arrow shows which where the acetabulum reaches the femoral head and the right image shows the arrows where it should normally cover.
Figure 10: a coating defect on the left, right normal lining
In these cases, our school promotes a conservative treatment, the goal is to correct the deformity of the joint in order to preserve the best and avoid the hip joint replacement.
VSeveral gestures are performed in our institution, the peri acetabular osteotomy and bone Butee.
Figure 11 shows a hip profile, note the arrow indicates the placement of a small plate that holds a piece of bone and thus increases and covers the head of the femur, this is Butee marrow. And Figure 12 shows the peri acetabular osteotomy , it consists in cutting into the bone of the pelvis to increase the coverage of your hip and keep it in place with screws, a little more invasive but has clear indications.
Figure 11: Bone Butee to hip dysplasia.
Figure 12: peri-acetabular osteotomy.
